Home / 10,702.92-16,047.54-5,145.20

Finding the Fourth Proportional to 10,702.92, 16,047.54 and 5,145.20

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Solution

The fourth proportional to 10,702.92, 16,047.54 and 5,145.20 is: 7,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,702.92 : 16,047.54 = 5,145.20 : x
  2. Step 2: Convert to fraction form
    10,702.92/16,047.54 = 5,145.20/x
  3. Step 3: Cross multiply
    10,702.92x = 16,047.54 × 5,145.20
  4. Step 4: Simplify right side
    10,702.92x = 82,567,842.93
  5. Step 5: Solve for x
    x = 82,567,842.93/10,702.92
  6. Step 6: Final answer
    x = 7,714.52

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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.