Home / 11,020.68-16,510.18-8,543.36

Finding the Fourth Proportional to 11,020.68, 16,510.18 and 8,543.36

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Solution

The fourth proportional to 11,020.68, 16,510.18 and 8,543.36 is: 12,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020.68 : 16,510.18 = 8,543.36 : x
  2. Step 2: Convert to fraction form
    11,020.68/16,510.18 = 8,543.36/x
  3. Step 3: Cross multiply
    11,020.68x = 16,510.18 × 8,543.36
  4. Step 4: Simplify right side
    11,020.68x = 141,052,411.40
  5. Step 5: Solve for x
    x = 141,052,411.40/11,020.68
  6. Step 6: Final answer
    x = 12,798.88

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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.