Home / 7,319.16-10,080.18-6,324.12

Finding the Fourth Proportional to 7,319.16, 10,080.18 and 6,324.12

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Solution

The fourth proportional to 7,319.16, 10,080.18 and 6,324.12 is: 8,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,319.16 : 10,080.18 = 6,324.12 : x
  2. Step 2: Convert to fraction form
    7,319.16/10,080.18 = 6,324.12/x
  3. Step 3: Cross multiply
    7,319.16x = 10,080.18 × 6,324.12
  4. Step 4: Simplify right side
    7,319.16x = 63,748,267.94
  5. Step 5: Solve for x
    x = 63,748,267.94/7,319.16
  6. Step 6: Final answer
    x = 8,709.78

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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.