Home / 8,617.51-12,925.55-3,421.99

Finding the Fourth Proportional to 8,617.51, 12,925.55 and 3,421.99

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Solution

The fourth proportional to 8,617.51, 12,925.55 and 3,421.99 is: 5,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.51 : 12,925.55 = 3,421.99 : x
  2. Step 2: Convert to fraction form
    8,617.51/12,925.55 = 3,421.99/x
  3. Step 3: Cross multiply
    8,617.51x = 12,925.55 × 3,421.99
  4. Step 4: Simplify right side
    8,617.51x = 44,231,085.73
  5. Step 5: Solve for x
    x = 44,231,085.73/8,617.51
  6. Step 6: Final answer
    x = 5,132.70

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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.