Home / 15,238.36-21,030.69-8,525.69

Finding the Fourth Proportional to 15,238.36, 21,030.69 and 8,525.69

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Solution

The fourth proportional to 15,238.36, 21,030.69 and 8,525.69 is: 11,766.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,238.36 : 21,030.69 = 8,525.69 : x
  2. Step 2: Convert to fraction form
    15,238.36/21,030.69 = 8,525.69/x
  3. Step 3: Cross multiply
    15,238.36x = 21,030.69 × 8,525.69
  4. Step 4: Simplify right side
    15,238.36x = 179,301,116.61
  5. Step 5: Solve for x
    x = 179,301,116.61/15,238.36
  6. Step 6: Final answer
    x = 11,766.43

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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.