Home / 19,180.71-28,787.55-7,502.13

Finding the Fourth Proportional to 19,180.71, 28,787.55 and 7,502.13

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Solution

The fourth proportional to 19,180.71, 28,787.55 and 7,502.13 is: 11,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.71 : 28,787.55 = 7,502.13 : x
  2. Step 2: Convert to fraction form
    19,180.71/28,787.55 = 7,502.13/x
  3. Step 3: Cross multiply
    19,180.71x = 28,787.55 × 7,502.13
  4. Step 4: Simplify right side
    19,180.71x = 215,967,942.48
  5. Step 5: Solve for x
    x = 215,967,942.48/19,180.71
  6. Step 6: Final answer
    x = 11,259.64

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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.