Home / 19,613.60-29,394.80-9,082.40

Finding the Fourth Proportional to 19,613.60, 29,394.80 and 9,082.40

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Solution

The fourth proportional to 19,613.60, 29,394.80 and 9,082.40 is: 13,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,613.60 : 29,394.80 = 9,082.40 : x
  2. Step 2: Convert to fraction form
    19,613.60/29,394.80 = 9,082.40/x
  3. Step 3: Cross multiply
    19,613.60x = 29,394.80 × 9,082.40
  4. Step 4: Simplify right side
    19,613.60x = 266,975,331.52
  5. Step 5: Solve for x
    x = 266,975,331.52/19,613.60
  6. Step 6: Final answer
    x = 13,611.75

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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.