Home / 19,689.47-29,493.19-9,798.76

Finding the Fourth Proportional to 19,689.47, 29,493.19 and 9,798.76

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Solution

The fourth proportional to 19,689.47, 29,493.19 and 9,798.76 is: 14,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,689.47 : 29,493.19 = 9,798.76 : x
  2. Step 2: Convert to fraction form
    19,689.47/29,493.19 = 9,798.76/x
  3. Step 3: Cross multiply
    19,689.47x = 29,493.19 × 9,798.76
  4. Step 4: Simplify right side
    19,689.47x = 288,996,690.44
  5. Step 5: Solve for x
    x = 288,996,690.44/19,689.47
  6. Step 6: Final answer
    x = 14,677.73

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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.