Home / 15,956.48-22,020.72-9,240.90

Finding the Fourth Proportional to 15,956.48, 22,020.72 and 9,240.90

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Solution

The fourth proportional to 15,956.48, 22,020.72 and 9,240.90 is: 12,752.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,956.48 : 22,020.72 = 9,240.90 : x
  2. Step 2: Convert to fraction form
    15,956.48/22,020.72 = 9,240.90/x
  3. Step 3: Cross multiply
    15,956.48x = 22,020.72 × 9,240.90
  4. Step 4: Simplify right side
    15,956.48x = 203,491,271.45
  5. Step 5: Solve for x
    x = 203,491,271.45/15,956.48
  6. Step 6: Final answer
    x = 12,752.89

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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.