Home / 10,899.74-15,042.14-6,423.68

Finding the Fourth Proportional to 10,899.74, 15,042.14 and 6,423.68

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Solution

The fourth proportional to 10,899.74, 15,042.14 and 6,423.68 is: 8,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.74 : 15,042.14 = 6,423.68 : x
  2. Step 2: Convert to fraction form
    10,899.74/15,042.14 = 6,423.68/x
  3. Step 3: Cross multiply
    10,899.74x = 15,042.14 × 6,423.68
  4. Step 4: Simplify right side
    10,899.74x = 96,625,947.54
  5. Step 5: Solve for x
    x = 96,625,947.54/10,899.74
  6. Step 6: Final answer
    x = 8,864.98

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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.