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Finding the Fourth Proportional to 8,702.16, 11,935.02 and 8,345.04

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Solution

The fourth proportional to 8,702.16, 11,935.02 and 8,345.04 is: 11,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.16 : 11,935.02 = 8,345.04 : x
  2. Step 2: Convert to fraction form
    8,702.16/11,935.02 = 8,345.04/x
  3. Step 3: Cross multiply
    8,702.16x = 11,935.02 × 8,345.04
  4. Step 4: Simplify right side
    8,702.16x = 99,598,219.30
  5. Step 5: Solve for x
    x = 99,598,219.30/8,702.16
  6. Step 6: Final answer
    x = 11,445.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.