Home / 12,909.02-17,812.28-7,604.88

Finding the Fourth Proportional to 12,909.02, 17,812.28 and 7,604.88

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Solution

The fourth proportional to 12,909.02, 17,812.28 and 7,604.88 is: 10,493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.02 : 17,812.28 = 7,604.88 : x
  2. Step 2: Convert to fraction form
    12,909.02/17,812.28 = 7,604.88/x
  3. Step 3: Cross multiply
    12,909.02x = 17,812.28 × 7,604.88
  4. Step 4: Simplify right side
    12,909.02x = 135,460,251.93
  5. Step 5: Solve for x
    x = 135,460,251.93/12,909.02
  6. Step 6: Final answer
    x = 10,493.46

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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.