Home / 10,864.20-14,993.87-6,617.76

Finding the Fourth Proportional to 10,864.20, 14,993.87 and 6,617.76

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Solution

The fourth proportional to 10,864.20, 14,993.87 and 6,617.76 is: 9,133.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,864.20 : 14,993.87 = 6,617.76 : x
  2. Step 2: Convert to fraction form
    10,864.20/14,993.87 = 6,617.76/x
  3. Step 3: Cross multiply
    10,864.20x = 14,993.87 × 6,617.76
  4. Step 4: Simplify right side
    10,864.20x = 99,225,833.13
  5. Step 5: Solve for x
    x = 99,225,833.13/10,864.20
  6. Step 6: Final answer
    x = 9,133.28

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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.