Home / 11,490.30-15,856.02-6,454.73

Finding the Fourth Proportional to 11,490.30, 15,856.02 and 6,454.73

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Solution

The fourth proportional to 11,490.30, 15,856.02 and 6,454.73 is: 8,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.30 : 15,856.02 = 6,454.73 : x
  2. Step 2: Convert to fraction form
    11,490.30/15,856.02 = 6,454.73/x
  3. Step 3: Cross multiply
    11,490.30x = 15,856.02 × 6,454.73
  4. Step 4: Simplify right side
    11,490.30x = 102,346,367.61
  5. Step 5: Solve for x
    x = 102,346,367.61/11,490.30
  6. Step 6: Final answer
    x = 8,907.20

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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.