Home / 12,342.87-18,503.37-9,434.16

Finding the Fourth Proportional to 12,342.87, 18,503.37 and 9,434.16

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Solution

The fourth proportional to 12,342.87, 18,503.37 and 9,434.16 is: 14,142.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,342.87 : 18,503.37 = 9,434.16 : x
  2. Step 2: Convert to fraction form
    12,342.87/18,503.37 = 9,434.16/x
  3. Step 3: Cross multiply
    12,342.87x = 18,503.37 × 9,434.16
  4. Step 4: Simplify right side
    12,342.87x = 174,563,753.12
  5. Step 5: Solve for x
    x = 174,563,753.12/12,342.87
  6. Step 6: Final answer
    x = 14,142.88

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1.5x scale

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.