Home / 13,575.15-20,350.19-9,417.12

Finding the Fourth Proportional to 13,575.15, 20,350.19 and 9,417.12

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Solution

The fourth proportional to 13,575.15, 20,350.19 and 9,417.12 is: 14,116.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.15 : 20,350.19 = 9,417.12 : x
  2. Step 2: Convert to fraction form
    13,575.15/20,350.19 = 9,417.12/x
  3. Step 3: Cross multiply
    13,575.15x = 20,350.19 × 9,417.12
  4. Step 4: Simplify right side
    13,575.15x = 191,640,181.25
  5. Step 5: Solve for x
    x = 191,640,181.25/13,575.15
  6. Step 6: Final answer
    x = 14,116.98

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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.