Home / 18,543.48-25,576.05-12,878.24

Finding the Fourth Proportional to 18,543.48, 25,576.05 and 12,878.24

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Solution

The fourth proportional to 18,543.48, 25,576.05 and 12,878.24 is: 17,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.48 : 25,576.05 = 12,878.24 : x
  2. Step 2: Convert to fraction form
    18,543.48/25,576.05 = 12,878.24/x
  3. Step 3: Cross multiply
    18,543.48x = 25,576.05 × 12,878.24
  4. Step 4: Simplify right side
    18,543.48x = 329,374,574.43
  5. Step 5: Solve for x
    x = 329,374,574.43/18,543.48
  6. Step 6: Final answer
    x = 17,762.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.