Home / 18,055.47-24,916.10-9,989.43

Finding the Fourth Proportional to 18,055.47, 24,916.10 and 9,989.43

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Solution

The fourth proportional to 18,055.47, 24,916.10 and 9,989.43 is: 13,785.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,055.47 : 24,916.10 = 9,989.43 : x
  2. Step 2: Convert to fraction form
    18,055.47/24,916.10 = 9,989.43/x
  3. Step 3: Cross multiply
    18,055.47x = 24,916.10 × 9,989.43
  4. Step 4: Simplify right side
    18,055.47x = 248,897,586.88
  5. Step 5: Solve for x
    x = 248,897,586.88/18,055.47
  6. Step 6: Final answer
    x = 13,785.16

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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.