Home / 19,679.76-29,519.64-9,298.80

Finding the Fourth Proportional to 19,679.76, 29,519.64 and 9,298.80

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Solution

The fourth proportional to 19,679.76, 29,519.64 and 9,298.80 is: 13,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.76 : 29,519.64 = 9,298.80 : x
  2. Step 2: Convert to fraction form
    19,679.76/29,519.64 = 9,298.80/x
  3. Step 3: Cross multiply
    19,679.76x = 29,519.64 × 9,298.80
  4. Step 4: Simplify right side
    19,679.76x = 274,497,228.43
  5. Step 5: Solve for x
    x = 274,497,228.43/19,679.76
  6. Step 6: Final answer
    x = 13,948.20

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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.