Home / 11,177.20-15,423.78-6,460.84

Finding the Fourth Proportional to 11,177.20, 15,423.78 and 6,460.84

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Solution

The fourth proportional to 11,177.20, 15,423.78 and 6,460.84 is: 8,915.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,177.20 : 15,423.78 = 6,460.84 : x
  2. Step 2: Convert to fraction form
    11,177.20/15,423.78 = 6,460.84/x
  3. Step 3: Cross multiply
    11,177.20x = 15,423.78 × 6,460.84
  4. Step 4: Simplify right side
    11,177.20x = 99,650,574.78
  5. Step 5: Solve for x
    x = 99,650,574.78/11,177.20
  6. Step 6: Final answer
    x = 8,915.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.