Home / 8,914.08-12,301.56-5,135.16

Finding the Fourth Proportional to 8,914.08, 12,301.56 and 5,135.16

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Solution

The fourth proportional to 8,914.08, 12,301.56 and 5,135.16 is: 7,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.08 : 12,301.56 = 5,135.16 : x
  2. Step 2: Convert to fraction form
    8,914.08/12,301.56 = 5,135.16/x
  3. Step 3: Cross multiply
    8,914.08x = 12,301.56 × 5,135.16
  4. Step 4: Simplify right side
    8,914.08x = 63,170,478.85
  5. Step 5: Solve for x
    x = 63,170,478.85/8,914.08
  6. Step 6: Final answer
    x = 7,086.60

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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.