Home / 13,423.68-20,117.12-10,134.08

Finding the Fourth Proportional to 13,423.68, 20,117.12 and 10,134.08

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Solution

The fourth proportional to 13,423.68, 20,117.12 and 10,134.08 is: 15,187.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.68 : 20,117.12 = 10,134.08 : x
  2. Step 2: Convert to fraction form
    13,423.68/20,117.12 = 10,134.08/x
  3. Step 3: Cross multiply
    13,423.68x = 20,117.12 × 10,134.08
  4. Step 4: Simplify right side
    13,423.68x = 203,868,503.45
  5. Step 5: Solve for x
    x = 203,868,503.45/13,423.68
  6. Step 6: Final answer
    x = 15,187.23

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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.