Home / 8,312.18-11,470.26-5,167.76

Finding the Fourth Proportional to 8,312.18, 11,470.26 and 5,167.76

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Solution

The fourth proportional to 8,312.18, 11,470.26 and 5,167.76 is: 7,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.18 : 11,470.26 = 5,167.76 : x
  2. Step 2: Convert to fraction form
    8,312.18/11,470.26 = 5,167.76/x
  3. Step 3: Cross multiply
    8,312.18x = 11,470.26 × 5,167.76
  4. Step 4: Simplify right side
    8,312.18x = 59,275,550.82
  5. Step 5: Solve for x
    x = 59,275,550.82/8,312.18
  6. Step 6: Final answer
    x = 7,131.17

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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.