Home / 13,417.12-20,125.36-4,182.88

Finding the Fourth Proportional to 13,417.12, 20,125.36 and 4,182.88

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Solution

The fourth proportional to 13,417.12, 20,125.36 and 4,182.88 is: 6,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.12 : 20,125.36 = 4,182.88 : x
  2. Step 2: Convert to fraction form
    13,417.12/20,125.36 = 4,182.88/x
  3. Step 3: Cross multiply
    13,417.12x = 20,125.36 × 4,182.88
  4. Step 4: Simplify right side
    13,417.12x = 84,181,965.84
  5. Step 5: Solve for x
    x = 84,181,965.84/13,417.12
  6. Step 6: Final answer
    x = 6,274.22

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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.