Home / 10,070.16-15,103.68-5,143.44

Finding the Fourth Proportional to 10,070.16, 15,103.68 and 5,143.44

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Solution

The fourth proportional to 10,070.16, 15,103.68 and 5,143.44 is: 7,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,070.16 : 15,103.68 = 5,143.44 : x
  2. Step 2: Convert to fraction form
    10,070.16/15,103.68 = 5,143.44/x
  3. Step 3: Cross multiply
    10,070.16x = 15,103.68 × 5,143.44
  4. Step 4: Simplify right side
    10,070.16x = 77,684,871.86
  5. Step 5: Solve for x
    x = 77,684,871.86/10,070.16
  6. Step 6: Final answer
    x = 7,714.36

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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.