Home / 13,543.24-18,679.14-9,065.56

Finding the Fourth Proportional to 13,543.24, 18,679.14 and 9,065.56

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Solution

The fourth proportional to 13,543.24, 18,679.14 and 9,065.56 is: 12,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.24 : 18,679.14 = 9,065.56 : x
  2. Step 2: Convert to fraction form
    13,543.24/18,679.14 = 9,065.56/x
  3. Step 3: Cross multiply
    13,543.24x = 18,679.14 × 9,065.56
  4. Step 4: Simplify right side
    13,543.24x = 169,336,864.42
  5. Step 5: Solve for x
    x = 169,336,864.42/13,543.24
  6. Step 6: Final answer
    x = 12,503.42

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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.