Home / 12,423.50-18,617.78-9,637.22

Finding the Fourth Proportional to 12,423.50, 18,617.78 and 9,637.22

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Solution

The fourth proportional to 12,423.50, 18,617.78 and 9,637.22 is: 14,442.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.50 : 18,617.78 = 9,637.22 : x
  2. Step 2: Convert to fraction form
    12,423.50/18,617.78 = 9,637.22/x
  3. Step 3: Cross multiply
    12,423.50x = 18,617.78 × 9,637.22
  4. Step 4: Simplify right side
    12,423.50x = 179,423,641.77
  5. Step 5: Solve for x
    x = 179,423,641.77/12,423.50
  6. Step 6: Final answer
    x = 14,442.28

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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.