Home / 11,309.56-15,607.60-8,471.93

Finding the Fourth Proportional to 11,309.56, 15,607.60 and 8,471.93

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Solution

The fourth proportional to 11,309.56, 15,607.60 and 8,471.93 is: 11,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.56 : 15,607.60 = 8,471.93 : x
  2. Step 2: Convert to fraction form
    11,309.56/15,607.60 = 8,471.93/x
  3. Step 3: Cross multiply
    11,309.56x = 15,607.60 × 8,471.93
  4. Step 4: Simplify right side
    11,309.56x = 132,226,395.45
  5. Step 5: Solve for x
    x = 132,226,395.45/11,309.56
  6. Step 6: Final answer
    x = 11,691.56

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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.