Home / 10,605.36-15,899.28-4,678.02

Finding the Fourth Proportional to 10,605.36, 15,899.28 and 4,678.02

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Solution

The fourth proportional to 10,605.36, 15,899.28 and 4,678.02 is: 7,013.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.36 : 15,899.28 = 4,678.02 : x
  2. Step 2: Convert to fraction form
    10,605.36/15,899.28 = 4,678.02/x
  3. Step 3: Cross multiply
    10,605.36x = 15,899.28 × 4,678.02
  4. Step 4: Simplify right side
    10,605.36x = 74,377,149.83
  5. Step 5: Solve for x
    x = 74,377,149.83/10,605.36
  6. Step 6: Final answer
    x = 7,013.17

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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.