Home / 15,655.27-21,605.77-8,941.90

Finding the Fourth Proportional to 15,655.27, 21,605.77 and 8,941.90

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Solution

The fourth proportional to 15,655.27, 21,605.77 and 8,941.90 is: 12,340.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.27 : 21,605.77 = 8,941.90 : x
  2. Step 2: Convert to fraction form
    15,655.27/21,605.77 = 8,941.90/x
  3. Step 3: Cross multiply
    15,655.27x = 21,605.77 × 8,941.90
  4. Step 4: Simplify right side
    15,655.27x = 193,196,612.41
  5. Step 5: Solve for x
    x = 193,196,612.41/15,655.27
  6. Step 6: Final answer
    x = 12,340.68

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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.