Home / 19,517.76-29,288.64-9,130.56

Finding the Fourth Proportional to 19,517.76, 29,288.64 and 9,130.56

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Solution

The fourth proportional to 19,517.76, 29,288.64 and 9,130.56 is: 13,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,517.76 : 29,288.64 = 9,130.56 : x
  2. Step 2: Convert to fraction form
    19,517.76/29,288.64 = 9,130.56/x
  3. Step 3: Cross multiply
    19,517.76x = 29,288.64 × 9,130.56
  4. Step 4: Simplify right side
    19,517.76x = 267,421,684.84
  5. Step 5: Solve for x
    x = 267,421,684.84/19,517.76
  6. Step 6: Final answer
    x = 13,701.45

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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.