Home / 15,441.13-21,308.76-8,367.55

Finding the Fourth Proportional to 15,441.13, 21,308.76 and 8,367.55

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Solution

The fourth proportional to 15,441.13, 21,308.76 and 8,367.55 is: 11,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.13 : 21,308.76 = 8,367.55 : x
  2. Step 2: Convert to fraction form
    15,441.13/21,308.76 = 8,367.55/x
  3. Step 3: Cross multiply
    15,441.13x = 21,308.76 × 8,367.55
  4. Step 4: Simplify right side
    15,441.13x = 178,301,966.36
  5. Step 5: Solve for x
    x = 178,301,966.36/15,441.13
  6. Step 6: Final answer
    x = 11,547.21

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Double scale
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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.