Home / 12,454.60-17,209.20-9,957.32

Finding the Fourth Proportional to 12,454.60, 17,209.20 and 9,957.32

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Solution

The fourth proportional to 12,454.60, 17,209.20 and 9,957.32 is: 13,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.60 : 17,209.20 = 9,957.32 : x
  2. Step 2: Convert to fraction form
    12,454.60/17,209.20 = 9,957.32/x
  3. Step 3: Cross multiply
    12,454.60x = 17,209.20 × 9,957.32
  4. Step 4: Simplify right side
    12,454.60x = 171,357,511.34
  5. Step 5: Solve for x
    x = 171,357,511.34/12,454.60
  6. Step 6: Final answer
    x = 13,758.57

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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.