Home / 19,981.72-29,964.76-7,494.92

Finding the Fourth Proportional to 19,981.72, 29,964.76 and 7,494.92

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Solution

The fourth proportional to 19,981.72, 29,964.76 and 7,494.92 is: 11,239.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,981.72 : 29,964.76 = 7,494.92 : x
  2. Step 2: Convert to fraction form
    19,981.72/29,964.76 = 7,494.92/x
  3. Step 3: Cross multiply
    19,981.72x = 29,964.76 × 7,494.92
  4. Step 4: Simplify right side
    19,981.72x = 224,583,479.02
  5. Step 5: Solve for x
    x = 224,583,479.02/19,981.72
  6. Step 6: Final answer
    x = 11,239.45

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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.