Home / 9,307.20-13,960.80-6,191.40

Finding the Fourth Proportional to 9,307.20, 13,960.80 and 6,191.40

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Solution

The fourth proportional to 9,307.20, 13,960.80 and 6,191.40 is: 9,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,307.20 : 13,960.80 = 6,191.40 : x
  2. Step 2: Convert to fraction form
    9,307.20/13,960.80 = 6,191.40/x
  3. Step 3: Cross multiply
    9,307.20x = 13,960.80 × 6,191.40
  4. Step 4: Simplify right side
    9,307.20x = 86,436,897.12
  5. Step 5: Solve for x
    x = 86,436,897.12/9,307.20
  6. Step 6: Final answer
    x = 9,287.10

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Similar ratio
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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.