Home / 8,487.21-12,726.15-4,543.10

Finding the Fourth Proportional to 8,487.21, 12,726.15 and 4,543.10

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Solution

The fourth proportional to 8,487.21, 12,726.15 and 4,543.10 is: 6,812.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.21 : 12,726.15 = 4,543.10 : x
  2. Step 2: Convert to fraction form
    8,487.21/12,726.15 = 4,543.10/x
  3. Step 3: Cross multiply
    8,487.21x = 12,726.15 × 4,543.10
  4. Step 4: Simplify right side
    8,487.21x = 57,816,172.07
  5. Step 5: Solve for x
    x = 57,816,172.07/8,487.21
  6. Step 6: Final answer
    x = 6,812.15

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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.