Home / 9,188.12-13,782.18-2,948.78

Finding the Fourth Proportional to 9,188.12, 13,782.18 and 2,948.78

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Solution

The fourth proportional to 9,188.12, 13,782.18 and 2,948.78 is: 4,423.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.12 : 13,782.18 = 2,948.78 : x
  2. Step 2: Convert to fraction form
    9,188.12/13,782.18 = 2,948.78/x
  3. Step 3: Cross multiply
    9,188.12x = 13,782.18 × 2,948.78
  4. Step 4: Simplify right side
    9,188.12x = 40,640,616.74
  5. Step 5: Solve for x
    x = 40,640,616.74/9,188.12
  6. Step 6: Final answer
    x = 4,423.17

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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.