Home / 9,316.90-12,859.17-5,340.70

Finding the Fourth Proportional to 9,316.90, 12,859.17 and 5,340.70

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Solution

The fourth proportional to 9,316.90, 12,859.17 and 5,340.70 is: 7,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,316.90 : 12,859.17 = 5,340.70 : x
  2. Step 2: Convert to fraction form
    9,316.90/12,859.17 = 5,340.70/x
  3. Step 3: Cross multiply
    9,316.90x = 12,859.17 × 5,340.70
  4. Step 4: Simplify right side
    9,316.90x = 68,676,904.92
  5. Step 5: Solve for x
    x = 68,676,904.92/9,316.90
  6. Step 6: Final answer
    x = 7,371.22

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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.