Home / 19,612.71-29,409.82-7,123.92

Finding the Fourth Proportional to 19,612.71, 29,409.82 and 7,123.92

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Solution

The fourth proportional to 19,612.71, 29,409.82 and 7,123.92 is: 10,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.71 : 29,409.82 = 7,123.92 : x
  2. Step 2: Convert to fraction form
    19,612.71/29,409.82 = 7,123.92/x
  3. Step 3: Cross multiply
    19,612.71x = 29,409.82 × 7,123.92
  4. Step 4: Simplify right side
    19,612.71x = 209,513,260.61
  5. Step 5: Solve for x
    x = 209,513,260.61/19,612.71
  6. Step 6: Final answer
    x = 10,682.53

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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.