Home / 19,001.68-28,502.16-5,150.80

Finding the Fourth Proportional to 19,001.68, 28,502.16 and 5,150.80

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Solution

The fourth proportional to 19,001.68, 28,502.16 and 5,150.80 is: 7,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.68 : 28,502.16 = 5,150.80 : x
  2. Step 2: Convert to fraction form
    19,001.68/28,502.16 = 5,150.80/x
  3. Step 3: Cross multiply
    19,001.68x = 28,502.16 × 5,150.80
  4. Step 4: Simplify right side
    19,001.68x = 146,808,925.73
  5. Step 5: Solve for x
    x = 146,808,925.73/19,001.68
  6. Step 6: Final answer
    x = 7,726.10

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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.