Home / 10,947.63-15,108.08-5,979.63

Finding the Fourth Proportional to 10,947.63, 15,108.08 and 5,979.63

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Solution

The fourth proportional to 10,947.63, 15,108.08 and 5,979.63 is: 8,252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.63 : 15,108.08 = 5,979.63 : x
  2. Step 2: Convert to fraction form
    10,947.63/15,108.08 = 5,979.63/x
  3. Step 3: Cross multiply
    10,947.63x = 15,108.08 × 5,979.63
  4. Step 4: Simplify right side
    10,947.63x = 90,340,728.41
  5. Step 5: Solve for x
    x = 90,340,728.41/10,947.63
  6. Step 6: Final answer
    x = 8,252.08

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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.