Home / 10,287.23-15,419.17-4,729.09

Finding the Fourth Proportional to 10,287.23, 15,419.17 and 4,729.09

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Solution

The fourth proportional to 10,287.23, 15,419.17 and 4,729.09 is: 7,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.23 : 15,419.17 = 4,729.09 : x
  2. Step 2: Convert to fraction form
    10,287.23/15,419.17 = 4,729.09/x
  3. Step 3: Cross multiply
    10,287.23x = 15,419.17 × 4,729.09
  4. Step 4: Simplify right side
    10,287.23x = 72,918,642.66
  5. Step 5: Solve for x
    x = 72,918,642.66/10,287.23
  6. Step 6: Final answer
    x = 7,088.27

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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.