Home / 15,123.45-22,662.90-10,972.20

Finding the Fourth Proportional to 15,123.45, 22,662.90 and 10,972.20

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Solution

The fourth proportional to 15,123.45, 22,662.90 and 10,972.20 is: 16,442.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,123.45 : 22,662.90 = 10,972.20 : x
  2. Step 2: Convert to fraction form
    15,123.45/22,662.90 = 10,972.20/x
  3. Step 3: Cross multiply
    15,123.45x = 22,662.90 × 10,972.20
  4. Step 4: Simplify right side
    15,123.45x = 248,661,871.38
  5. Step 5: Solve for x
    x = 248,661,871.38/15,123.45
  6. Step 6: Final answer
    x = 16,442.14

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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.