Home / 10,131.60-15,203.28-4,287.84

Finding the Fourth Proportional to 10,131.60, 15,203.28 and 4,287.84

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Solution

The fourth proportional to 10,131.60, 15,203.28 and 4,287.84 is: 6,434.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.60 : 15,203.28 = 4,287.84 : x
  2. Step 2: Convert to fraction form
    10,131.60/15,203.28 = 4,287.84/x
  3. Step 3: Cross multiply
    10,131.60x = 15,203.28 × 4,287.84
  4. Step 4: Simplify right side
    10,131.60x = 65,189,232.12
  5. Step 5: Solve for x
    x = 65,189,232.12/10,131.60
  6. Step 6: Final answer
    x = 6,434.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.