Home / 18,313.12-25,272-9,929.44

Finding the Fourth Proportional to 18,313.12, 25,272 and 9,929.44

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Solution

The fourth proportional to 18,313.12, 25,272 and 9,929.44 is: 13,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.12 : 25,272 = 9,929.44 : x
  2. Step 2: Convert to fraction form
    18,313.12/25,272 = 9,929.44/x
  3. Step 3: Cross multiply
    18,313.12x = 25,272 × 9,929.44
  4. Step 4: Simplify right side
    18,313.12x = 250,936,807.68
  5. Step 5: Solve for x
    x = 250,936,807.68/18,313.12
  6. Step 6: Final answer
    x = 13,702.57

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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.