Home / 8,934.56-12,325.65-5,578.21

Finding the Fourth Proportional to 8,934.56, 12,325.65 and 5,578.21

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Solution

The fourth proportional to 8,934.56, 12,325.65 and 5,578.21 is: 7,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.56 : 12,325.65 = 5,578.21 : x
  2. Step 2: Convert to fraction form
    8,934.56/12,325.65 = 5,578.21/x
  3. Step 3: Cross multiply
    8,934.56x = 12,325.65 × 5,578.21
  4. Step 4: Simplify right side
    8,934.56x = 68,755,002.46
  5. Step 5: Solve for x
    x = 68,755,002.46/8,934.56
  6. Step 6: Final answer
    x = 7,695.40

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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.