Home / 11,587.71-15,991.13-6,282.57

Finding the Fourth Proportional to 11,587.71, 15,991.13 and 6,282.57

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Solution

The fourth proportional to 11,587.71, 15,991.13 and 6,282.57 is: 8,670.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.71 : 15,991.13 = 6,282.57 : x
  2. Step 2: Convert to fraction form
    11,587.71/15,991.13 = 6,282.57/x
  3. Step 3: Cross multiply
    11,587.71x = 15,991.13 × 6,282.57
  4. Step 4: Simplify right side
    11,587.71x = 100,465,393.60
  5. Step 5: Solve for x
    x = 100,465,393.60/11,587.71
  6. Step 6: Final answer
    x = 8,670.00

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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.