Home / 12,333.47-18,500.20-10,135.53

Finding the Fourth Proportional to 12,333.47, 18,500.20 and 10,135.53

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Solution

The fourth proportional to 12,333.47, 18,500.20 and 10,135.53 is: 15,203.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,333.47 : 18,500.20 = 10,135.53 : x
  2. Step 2: Convert to fraction form
    12,333.47/18,500.20 = 10,135.53/x
  3. Step 3: Cross multiply
    12,333.47x = 18,500.20 × 10,135.53
  4. Step 4: Simplify right side
    12,333.47x = 187,509,306.77
  5. Step 5: Solve for x
    x = 187,509,306.77/12,333.47
  6. Step 6: Final answer
    x = 15,203.30

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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.