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Finding the Fourth Proportional to 15,065.94, 22,569.49 and 7,157.20

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Solution

The fourth proportional to 15,065.94, 22,569.49 and 7,157.20 is: 10,721.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,065.94 : 22,569.49 = 7,157.20 : x
  2. Step 2: Convert to fraction form
    15,065.94/22,569.49 = 7,157.20/x
  3. Step 3: Cross multiply
    15,065.94x = 22,569.49 × 7,157.20
  4. Step 4: Simplify right side
    15,065.94x = 161,534,353.83
  5. Step 5: Solve for x
    x = 161,534,353.83/15,065.94
  6. Step 6: Final answer
    x = 10,721.82

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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.