Home / 13,400.80-18,493.72-7,432.11

Finding the Fourth Proportional to 13,400.80, 18,493.72 and 7,432.11

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Solution

The fourth proportional to 13,400.80, 18,493.72 and 7,432.11 is: 10,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.80 : 18,493.72 = 7,432.11 : x
  2. Step 2: Convert to fraction form
    13,400.80/18,493.72 = 7,432.11/x
  3. Step 3: Cross multiply
    13,400.80x = 18,493.72 × 7,432.11
  4. Step 4: Simplify right side
    13,400.80x = 137,447,342.77
  5. Step 5: Solve for x
    x = 137,447,342.77/13,400.80
  6. Step 6: Final answer
    x = 10,256.65

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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.