Home / 16,818.40-25,227.60-5,130.10

Finding the Fourth Proportional to 16,818.40, 25,227.60 and 5,130.10

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Solution

The fourth proportional to 16,818.40, 25,227.60 and 5,130.10 is: 7,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,818.40 : 25,227.60 = 5,130.10 : x
  2. Step 2: Convert to fraction form
    16,818.40/25,227.60 = 5,130.10/x
  3. Step 3: Cross multiply
    16,818.40x = 25,227.60 × 5,130.10
  4. Step 4: Simplify right side
    16,818.40x = 129,420,110.76
  5. Step 5: Solve for x
    x = 129,420,110.76/16,818.40
  6. Step 6: Final answer
    x = 7,695.15

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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.