Home / 13,510.72-20,262.30-5,714.20

Finding the Fourth Proportional to 13,510.72, 20,262.30 and 5,714.20

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Solution

The fourth proportional to 13,510.72, 20,262.30 and 5,714.20 is: 8,569.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.72 : 20,262.30 = 5,714.20 : x
  2. Step 2: Convert to fraction form
    13,510.72/20,262.30 = 5,714.20/x
  3. Step 3: Cross multiply
    13,510.72x = 20,262.30 × 5,714.20
  4. Step 4: Simplify right side
    13,510.72x = 115,782,834.66
  5. Step 5: Solve for x
    x = 115,782,834.66/13,510.72
  6. Step 6: Final answer
    x = 8,569.70

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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.