Home / 10,983.24-15,155.88-6,506.28

Finding the Fourth Proportional to 10,983.24, 15,155.88 and 6,506.28

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Solution

The fourth proportional to 10,983.24, 15,155.88 and 6,506.28 is: 8,978.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.24 : 15,155.88 = 6,506.28 : x
  2. Step 2: Convert to fraction form
    10,983.24/15,155.88 = 6,506.28/x
  3. Step 3: Cross multiply
    10,983.24x = 15,155.88 × 6,506.28
  4. Step 4: Simplify right side
    10,983.24x = 98,608,398.93
  5. Step 5: Solve for x
    x = 98,608,398.93/10,983.24
  6. Step 6: Final answer
    x = 8,978.08

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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.