Home / 11,475.06-15,836.40-6,439.77

Finding the Fourth Proportional to 11,475.06, 15,836.40 and 6,439.77

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Solution

The fourth proportional to 11,475.06, 15,836.40 and 6,439.77 is: 8,887.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,475.06 : 15,836.40 = 6,439.77 : x
  2. Step 2: Convert to fraction form
    11,475.06/15,836.40 = 6,439.77/x
  3. Step 3: Cross multiply
    11,475.06x = 15,836.40 × 6,439.77
  4. Step 4: Simplify right side
    11,475.06x = 101,982,773.63
  5. Step 5: Solve for x
    x = 101,982,773.63/11,475.06
  6. Step 6: Final answer
    x = 8,887.34

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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.