Home / 10,122.16-13,967.10-6,142.60

Finding the Fourth Proportional to 10,122.16, 13,967.10 and 6,142.60

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Solution

The fourth proportional to 10,122.16, 13,967.10 and 6,142.60 is: 8,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.16 : 13,967.10 = 6,142.60 : x
  2. Step 2: Convert to fraction form
    10,122.16/13,967.10 = 6,142.60/x
  3. Step 3: Cross multiply
    10,122.16x = 13,967.10 × 6,142.60
  4. Step 4: Simplify right side
    10,122.16x = 85,794,308.46
  5. Step 5: Solve for x
    x = 85,794,308.46/10,122.16
  6. Step 6: Final answer
    x = 8,475.89

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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.