Home / 10,158.63-13,989.67-8,373.84

Finding the Fourth Proportional to 10,158.63, 13,989.67 and 8,373.84

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Solution

The fourth proportional to 10,158.63, 13,989.67 and 8,373.84 is: 11,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,158.63 : 13,989.67 = 8,373.84 : x
  2. Step 2: Convert to fraction form
    10,158.63/13,989.67 = 8,373.84/x
  3. Step 3: Cross multiply
    10,158.63x = 13,989.67 × 8,373.84
  4. Step 4: Simplify right side
    10,158.63x = 117,147,231.94
  5. Step 5: Solve for x
    x = 117,147,231.94/10,158.63
  6. Step 6: Final answer
    x = 11,531.79

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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.