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Finding the Fourth Proportional to 10,445.99, 15,650.71 and 8,702.17

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Solution

The fourth proportional to 10,445.99, 15,650.71 and 8,702.17 is: 13,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,445.99 : 15,650.71 = 8,702.17 : x
  2. Step 2: Convert to fraction form
    10,445.99/15,650.71 = 8,702.17/x
  3. Step 3: Cross multiply
    10,445.99x = 15,650.71 × 8,702.17
  4. Step 4: Simplify right side
    10,445.99x = 136,195,078.16
  5. Step 5: Solve for x
    x = 136,195,078.16/10,445.99
  6. Step 6: Final answer
    x = 13,038.03

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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.