Home / 15,955.60-21,995.91-11,225.20

Finding the Fourth Proportional to 15,955.60, 21,995.91 and 11,225.20

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Solution

The fourth proportional to 15,955.60, 21,995.91 and 11,225.20 is: 15,474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.60 : 21,995.91 = 11,225.20 : x
  2. Step 2: Convert to fraction form
    15,955.60/21,995.91 = 11,225.20/x
  3. Step 3: Cross multiply
    15,955.60x = 21,995.91 × 11,225.20
  4. Step 4: Simplify right side
    15,955.60x = 246,908,488.93
  5. Step 5: Solve for x
    x = 246,908,488.93/15,955.60
  6. Step 6: Final answer
    x = 15,474.72

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.