Home / 9,306.90-13,960.35-5,145.30

Finding the Fourth Proportional to 9,306.90, 13,960.35 and 5,145.30

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Solution

The fourth proportional to 9,306.90, 13,960.35 and 5,145.30 is: 7,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.90 : 13,960.35 = 5,145.30 : x
  2. Step 2: Convert to fraction form
    9,306.90/13,960.35 = 5,145.30/x
  3. Step 3: Cross multiply
    9,306.90x = 13,960.35 × 5,145.30
  4. Step 4: Simplify right side
    9,306.90x = 71,830,188.86
  5. Step 5: Solve for x
    x = 71,830,188.86/9,306.90
  6. Step 6: Final answer
    x = 7,717.95

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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.