Home / 19,764.11-29,646.17-8,077.32

Finding the Fourth Proportional to 19,764.11, 29,646.17 and 8,077.32

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Solution

The fourth proportional to 19,764.11, 29,646.17 and 8,077.32 is: 12,115.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.11 : 29,646.17 = 8,077.32 : x
  2. Step 2: Convert to fraction form
    19,764.11/29,646.17 = 8,077.32/x
  3. Step 3: Cross multiply
    19,764.11x = 29,646.17 × 8,077.32
  4. Step 4: Simplify right side
    19,764.11x = 239,461,561.48
  5. Step 5: Solve for x
    x = 239,461,561.48/19,764.11
  6. Step 6: Final answer
    x = 12,115.98

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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.