Home / 17,291.02-25,920.12-8,515.68

Finding the Fourth Proportional to 17,291.02, 25,920.12 and 8,515.68

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Solution

The fourth proportional to 17,291.02, 25,920.12 and 8,515.68 is: 12,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,291.02 : 25,920.12 = 8,515.68 : x
  2. Step 2: Convert to fraction form
    17,291.02/25,920.12 = 8,515.68/x
  3. Step 3: Cross multiply
    17,291.02x = 25,920.12 × 8,515.68
  4. Step 4: Simplify right side
    17,291.02x = 220,727,468.77
  5. Step 5: Solve for x
    x = 220,727,468.77/17,291.02
  6. Step 6: Final answer
    x = 12,765.44

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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.