Home / 15,461.20-23,177.40-10,781.20

Finding the Fourth Proportional to 15,461.20, 23,177.40 and 10,781.20

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Solution

The fourth proportional to 15,461.20, 23,177.40 and 10,781.20 is: 16,161.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,461.20 : 23,177.40 = 10,781.20 : x
  2. Step 2: Convert to fraction form
    15,461.20/23,177.40 = 10,781.20/x
  3. Step 3: Cross multiply
    15,461.20x = 23,177.40 × 10,781.20
  4. Step 4: Simplify right side
    15,461.20x = 249,880,184.88
  5. Step 5: Solve for x
    x = 249,880,184.88/15,461.20
  6. Step 6: Final answer
    x = 16,161.76

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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.