Home / 9,865.30-13,612.88-5,616.92

Finding the Fourth Proportional to 9,865.30, 13,612.88 and 5,616.92

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Solution

The fourth proportional to 9,865.30, 13,612.88 and 5,616.92 is: 7,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.30 : 13,612.88 = 5,616.92 : x
  2. Step 2: Convert to fraction form
    9,865.30/13,612.88 = 5,616.92/x
  3. Step 3: Cross multiply
    9,865.30x = 13,612.88 × 5,616.92
  4. Step 4: Simplify right side
    9,865.30x = 76,462,457.93
  5. Step 5: Solve for x
    x = 76,462,457.93/9,865.30
  6. Step 6: Final answer
    x = 7,750.65

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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.