Home / 9,140.20-13,710.30-5,241.40

Finding the Fourth Proportional to 9,140.20, 13,710.30 and 5,241.40

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Solution

The fourth proportional to 9,140.20, 13,710.30 and 5,241.40 is: 7,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.20 : 13,710.30 = 5,241.40 : x
  2. Step 2: Convert to fraction form
    9,140.20/13,710.30 = 5,241.40/x
  3. Step 3: Cross multiply
    9,140.20x = 13,710.30 × 5,241.40
  4. Step 4: Simplify right side
    9,140.20x = 71,861,166.42
  5. Step 5: Solve for x
    x = 71,861,166.42/9,140.20
  6. Step 6: Final answer
    x = 7,862.10

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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.