Home / 19,520.64-29,267.04-9,126.72

Finding the Fourth Proportional to 19,520.64, 29,267.04 and 9,126.72

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Solution

The fourth proportional to 19,520.64, 29,267.04 and 9,126.72 is: 13,683.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.64 : 29,267.04 = 9,126.72 : x
  2. Step 2: Convert to fraction form
    19,520.64/29,267.04 = 9,126.72/x
  3. Step 3: Cross multiply
    19,520.64x = 29,267.04 × 9,126.72
  4. Step 4: Simplify right side
    19,520.64x = 267,112,079.31
  5. Step 5: Solve for x
    x = 267,112,079.31/19,520.64
  6. Step 6: Final answer
    x = 13,683.57

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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.