Home / 8,347.65-11,516.07-4,988.78

Finding the Fourth Proportional to 8,347.65, 11,516.07 and 4,988.78

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Solution

The fourth proportional to 8,347.65, 11,516.07 and 4,988.78 is: 6,882.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.65 : 11,516.07 = 4,988.78 : x
  2. Step 2: Convert to fraction form
    8,347.65/11,516.07 = 4,988.78/x
  3. Step 3: Cross multiply
    8,347.65x = 11,516.07 × 4,988.78
  4. Step 4: Simplify right side
    8,347.65x = 57,451,139.69
  5. Step 5: Solve for x
    x = 57,451,139.69/8,347.65
  6. Step 6: Final answer
    x = 6,882.31

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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.