Home / 14,784.72-20,397.96-9,195.36

Finding the Fourth Proportional to 14,784.72, 20,397.96 and 9,195.36

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Solution

The fourth proportional to 14,784.72, 20,397.96 and 9,195.36 is: 12,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,784.72 : 20,397.96 = 9,195.36 : x
  2. Step 2: Convert to fraction form
    14,784.72/20,397.96 = 9,195.36/x
  3. Step 3: Cross multiply
    14,784.72x = 20,397.96 × 9,195.36
  4. Step 4: Simplify right side
    14,784.72x = 187,566,585.47
  5. Step 5: Solve for x
    x = 187,566,585.47/14,784.72
  6. Step 6: Final answer
    x = 12,686.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.