Home / 11,389.60-17,079.27-4,812.40

Finding the Fourth Proportional to 11,389.60, 17,079.27 and 4,812.40

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Solution

The fourth proportional to 11,389.60, 17,079.27 and 4,812.40 is: 7,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.60 : 17,079.27 = 4,812.40 : x
  2. Step 2: Convert to fraction form
    11,389.60/17,079.27 = 4,812.40/x
  3. Step 3: Cross multiply
    11,389.60x = 17,079.27 × 4,812.40
  4. Step 4: Simplify right side
    11,389.60x = 82,192,278.95
  5. Step 5: Solve for x
    x = 82,192,278.95/11,389.60
  6. Step 6: Final answer
    x = 7,216.43

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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.