Home / 16,405.48-22,637.28-9,331.12

Finding the Fourth Proportional to 16,405.48, 22,637.28 and 9,331.12

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Solution

The fourth proportional to 16,405.48, 22,637.28 and 9,331.12 is: 12,875.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.48 : 22,637.28 = 9,331.12 : x
  2. Step 2: Convert to fraction form
    16,405.48/22,637.28 = 9,331.12/x
  3. Step 3: Cross multiply
    16,405.48x = 22,637.28 × 9,331.12
  4. Step 4: Simplify right side
    16,405.48x = 211,231,176.15
  5. Step 5: Solve for x
    x = 211,231,176.15/16,405.48
  6. Step 6: Final answer
    x = 12,875.65

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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.