Home / 13,400.76-18,492.14-7,432.20

Finding the Fourth Proportional to 13,400.76, 18,492.14 and 7,432.20

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Solution

The fourth proportional to 13,400.76, 18,492.14 and 7,432.20 is: 10,255.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.76 : 18,492.14 = 7,432.20 : x
  2. Step 2: Convert to fraction form
    13,400.76/18,492.14 = 7,432.20/x
  3. Step 3: Cross multiply
    13,400.76x = 18,492.14 × 7,432.20
  4. Step 4: Simplify right side
    13,400.76x = 137,437,245.75
  5. Step 5: Solve for x
    x = 137,437,245.75/13,400.76
  6. Step 6: Final answer
    x = 10,255.93

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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.