Home / 12,402.04-18,562.62-9,114.28

Finding the Fourth Proportional to 12,402.04, 18,562.62 and 9,114.28

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Solution

The fourth proportional to 12,402.04, 18,562.62 and 9,114.28 is: 13,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402.04 : 18,562.62 = 9,114.28 : x
  2. Step 2: Convert to fraction form
    12,402.04/18,562.62 = 9,114.28/x
  3. Step 3: Cross multiply
    12,402.04x = 18,562.62 × 9,114.28
  4. Step 4: Simplify right side
    12,402.04x = 169,184,916.21
  5. Step 5: Solve for x
    x = 169,184,916.21/12,402.04
  6. Step 6: Final answer
    x = 13,641.70

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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.