Home / 12,543.98-18,812.13-8,673.26

Finding the Fourth Proportional to 12,543.98, 18,812.13 and 8,673.26

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Solution

The fourth proportional to 12,543.98, 18,812.13 and 8,673.26 is: 13,007.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543.98 : 18,812.13 = 8,673.26 : x
  2. Step 2: Convert to fraction form
    12,543.98/18,812.13 = 8,673.26/x
  3. Step 3: Cross multiply
    12,543.98x = 18,812.13 × 8,673.26
  4. Step 4: Simplify right side
    12,543.98x = 163,162,494.64
  5. Step 5: Solve for x
    x = 163,162,494.64/12,543.98
  6. Step 6: Final answer
    x = 13,007.23

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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.