Home / 8,869.59-12,240.95-5,641.65

Finding the Fourth Proportional to 8,869.59, 12,240.95 and 5,641.65

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Solution

The fourth proportional to 8,869.59, 12,240.95 and 5,641.65 is: 7,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.59 : 12,240.95 = 5,641.65 : x
  2. Step 2: Convert to fraction form
    8,869.59/12,240.95 = 5,641.65/x
  3. Step 3: Cross multiply
    8,869.59x = 12,240.95 × 5,641.65
  4. Step 4: Simplify right side
    8,869.59x = 69,059,127.36
  5. Step 5: Solve for x
    x = 69,059,127.36/8,869.59
  6. Step 6: Final answer
    x = 7,786.06

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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.