Home / 15,251.02-21,040.23-9,277.90

Finding the Fourth Proportional to 15,251.02, 21,040.23 and 9,277.90

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Solution

The fourth proportional to 15,251.02, 21,040.23 and 9,277.90 is: 12,799.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251.02 : 21,040.23 = 9,277.90 : x
  2. Step 2: Convert to fraction form
    15,251.02/21,040.23 = 9,277.90/x
  3. Step 3: Cross multiply
    15,251.02x = 21,040.23 × 9,277.90
  4. Step 4: Simplify right side
    15,251.02x = 195,209,149.92
  5. Step 5: Solve for x
    x = 195,209,149.92/15,251.02
  6. Step 6: Final answer
    x = 12,799.74

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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.