Home / 19,587.72-29,387.02-7,898.20

Finding the Fourth Proportional to 19,587.72, 29,387.02 and 7,898.20

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Solution

The fourth proportional to 19,587.72, 29,387.02 and 7,898.20 is: 11,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.72 : 29,387.02 = 7,898.20 : x
  2. Step 2: Convert to fraction form
    19,587.72/29,387.02 = 7,898.20/x
  3. Step 3: Cross multiply
    19,587.72x = 29,387.02 × 7,898.20
  4. Step 4: Simplify right side
    19,587.72x = 232,104,561.36
  5. Step 5: Solve for x
    x = 232,104,561.36/19,587.72
  6. Step 6: Final answer
    x = 11,849.49

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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.