Home / 7,386.30-11,079.45-3,498.30

Finding the Fourth Proportional to 7,386.30, 11,079.45 and 3,498.30

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Solution

The fourth proportional to 7,386.30, 11,079.45 and 3,498.30 is: 5,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.30 : 11,079.45 = 3,498.30 : x
  2. Step 2: Convert to fraction form
    7,386.30/11,079.45 = 3,498.30/x
  3. Step 3: Cross multiply
    7,386.30x = 11,079.45 × 3,498.30
  4. Step 4: Simplify right side
    7,386.30x = 38,759,239.94
  5. Step 5: Solve for x
    x = 38,759,239.94/7,386.30
  6. Step 6: Final answer
    x = 5,247.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.