Home / 11,261.10-15,569.85-9,371.98

Finding the Fourth Proportional to 11,261.10, 15,569.85 and 9,371.98

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Solution

The fourth proportional to 11,261.10, 15,569.85 and 9,371.98 is: 12,957.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,261.10 : 15,569.85 = 9,371.98 : x
  2. Step 2: Convert to fraction form
    11,261.10/15,569.85 = 9,371.98/x
  3. Step 3: Cross multiply
    11,261.10x = 15,569.85 × 9,371.98
  4. Step 4: Simplify right side
    11,261.10x = 145,920,322.80
  5. Step 5: Solve for x
    x = 145,920,322.80/11,261.10
  6. Step 6: Final answer
    x = 12,957.91

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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.