Home / 10,285.76-15,407.98-4,731.38

Finding the Fourth Proportional to 10,285.76, 15,407.98 and 4,731.38

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Solution

The fourth proportional to 10,285.76, 15,407.98 and 4,731.38 is: 7,087.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,285.76 : 15,407.98 = 4,731.38 : x
  2. Step 2: Convert to fraction form
    10,285.76/15,407.98 = 4,731.38/x
  3. Step 3: Cross multiply
    10,285.76x = 15,407.98 × 4,731.38
  4. Step 4: Simplify right side
    10,285.76x = 72,901,008.41
  5. Step 5: Solve for x
    x = 72,901,008.41/10,285.76
  6. Step 6: Final answer
    x = 7,087.57

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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.