Home / 11,541.68-15,905.40-8,223.92

Finding the Fourth Proportional to 11,541.68, 15,905.40 and 8,223.92

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Solution

The fourth proportional to 11,541.68, 15,905.40 and 8,223.92 is: 11,333.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,541.68 : 15,905.40 = 8,223.92 : x
  2. Step 2: Convert to fraction form
    11,541.68/15,905.40 = 8,223.92/x
  3. Step 3: Cross multiply
    11,541.68x = 15,905.40 × 8,223.92
  4. Step 4: Simplify right side
    11,541.68x = 130,804,737.17
  5. Step 5: Solve for x
    x = 130,804,737.17/11,541.68
  6. Step 6: Final answer
    x = 11,333.25

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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.