Home / 10,554.40-15,827.28-3,977.02

Finding the Fourth Proportional to 10,554.40, 15,827.28 and 3,977.02

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Solution

The fourth proportional to 10,554.40, 15,827.28 and 3,977.02 is: 5,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,554.40 : 15,827.28 = 3,977.02 : x
  2. Step 2: Convert to fraction form
    10,554.40/15,827.28 = 3,977.02/x
  3. Step 3: Cross multiply
    10,554.40x = 15,827.28 × 3,977.02
  4. Step 4: Simplify right side
    10,554.40x = 62,945,409.11
  5. Step 5: Solve for x
    x = 62,945,409.11/10,554.40
  6. Step 6: Final answer
    x = 5,963.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.