Home / 8,947.11-13,423.50-6,979.49

Finding the Fourth Proportional to 8,947.11, 13,423.50 and 6,979.49

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Solution

The fourth proportional to 8,947.11, 13,423.50 and 6,979.49 is: 10,471.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.11 : 13,423.50 = 6,979.49 : x
  2. Step 2: Convert to fraction form
    8,947.11/13,423.50 = 6,979.49/x
  3. Step 3: Cross multiply
    8,947.11x = 13,423.50 × 6,979.49
  4. Step 4: Simplify right side
    8,947.11x = 93,689,184.02
  5. Step 5: Solve for x
    x = 93,689,184.02/8,947.11
  6. Step 6: Final answer
    x = 10,471.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.