Home / 10,387.89-14,331.06-7,245.90

Finding the Fourth Proportional to 10,387.89, 14,331.06 and 7,245.90

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Solution

The fourth proportional to 10,387.89, 14,331.06 and 7,245.90 is: 9,996.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.89 : 14,331.06 = 7,245.90 : x
  2. Step 2: Convert to fraction form
    10,387.89/14,331.06 = 7,245.90/x
  3. Step 3: Cross multiply
    10,387.89x = 14,331.06 × 7,245.90
  4. Step 4: Simplify right side
    10,387.89x = 103,841,427.65
  5. Step 5: Solve for x
    x = 103,841,427.65/10,387.89
  6. Step 6: Final answer
    x = 9,996.39

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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.