Home / 11,587.32-15,990.72-6,282.36

Finding the Fourth Proportional to 11,587.32, 15,990.72 and 6,282.36

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Solution

The fourth proportional to 11,587.32, 15,990.72 and 6,282.36 is: 8,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.32 : 15,990.72 = 6,282.36 : x
  2. Step 2: Convert to fraction form
    11,587.32/15,990.72 = 6,282.36/x
  3. Step 3: Cross multiply
    11,587.32x = 15,990.72 × 6,282.36
  4. Step 4: Simplify right side
    11,587.32x = 100,459,459.70
  5. Step 5: Solve for x
    x = 100,459,459.70/11,587.32
  6. Step 6: Final answer
    x = 8,669.78

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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.