Home / 10,986.68-15,159.48-8,887.16

Finding the Fourth Proportional to 10,986.68, 15,159.48 and 8,887.16

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Solution

The fourth proportional to 10,986.68, 15,159.48 and 8,887.16 is: 12,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.68 : 15,159.48 = 8,887.16 : x
  2. Step 2: Convert to fraction form
    10,986.68/15,159.48 = 8,887.16/x
  3. Step 3: Cross multiply
    10,986.68x = 15,159.48 × 8,887.16
  4. Step 4: Simplify right side
    10,986.68x = 134,724,724.28
  5. Step 5: Solve for x
    x = 134,724,724.28/10,986.68
  6. Step 6: Final answer
    x = 12,262.55

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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.