Home / 8,320.79-12,495.27-5,565.17

Finding the Fourth Proportional to 8,320.79, 12,495.27 and 5,565.17

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Solution

The fourth proportional to 8,320.79, 12,495.27 and 5,565.17 is: 8,357.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.79 : 12,495.27 = 5,565.17 : x
  2. Step 2: Convert to fraction form
    8,320.79/12,495.27 = 5,565.17/x
  3. Step 3: Cross multiply
    8,320.79x = 12,495.27 × 5,565.17
  4. Step 4: Simplify right side
    8,320.79x = 69,538,301.75
  5. Step 5: Solve for x
    x = 69,538,301.75/8,320.79
  6. Step 6: Final answer
    x = 8,357.18

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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.