Home / 6,516.16-8,988.20-4,278.16

Finding the Fourth Proportional to 6,516.16, 8,988.20 and 4,278.16

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Solution

The fourth proportional to 6,516.16, 8,988.20 and 4,278.16 is: 5,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.16 : 8,988.20 = 4,278.16 : x
  2. Step 2: Convert to fraction form
    6,516.16/8,988.20 = 4,278.16/x
  3. Step 3: Cross multiply
    6,516.16x = 8,988.20 × 4,278.16
  4. Step 4: Simplify right side
    6,516.16x = 38,452,957.71
  5. Step 5: Solve for x
    x = 38,452,957.71/6,516.16
  6. Step 6: Final answer
    x = 5,901.17

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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.