Home / 13,770.11-20,655.18-5,452.08

Finding the Fourth Proportional to 13,770.11, 20,655.18 and 5,452.08

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Solution

The fourth proportional to 13,770.11, 20,655.18 and 5,452.08 is: 8,178.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.11 : 20,655.18 = 5,452.08 : x
  2. Step 2: Convert to fraction form
    13,770.11/20,655.18 = 5,452.08/x
  3. Step 3: Cross multiply
    13,770.11x = 20,655.18 × 5,452.08
  4. Step 4: Simplify right side
    13,770.11x = 112,613,693.77
  5. Step 5: Solve for x
    x = 112,613,693.77/13,770.11
  6. Step 6: Final answer
    x = 8,178.13

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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.