Home / 12,575.04-17,357.60-7,611.20

Finding the Fourth Proportional to 12,575.04, 17,357.60 and 7,611.20

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Solution

The fourth proportional to 12,575.04, 17,357.60 and 7,611.20 is: 10,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.04 : 17,357.60 = 7,611.20 : x
  2. Step 2: Convert to fraction form
    12,575.04/17,357.60 = 7,611.20/x
  3. Step 3: Cross multiply
    12,575.04x = 17,357.60 × 7,611.20
  4. Step 4: Simplify right side
    12,575.04x = 132,112,165.12
  5. Step 5: Solve for x
    x = 132,112,165.12/12,575.04
  6. Step 6: Final answer
    x = 10,505.90

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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.