Home / 10,554.89-15,832.40-3,977.55

Finding the Fourth Proportional to 10,554.89, 15,832.40 and 3,977.55

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Solution

The fourth proportional to 10,554.89, 15,832.40 and 3,977.55 is: 5,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,554.89 : 15,832.40 = 3,977.55 : x
  2. Step 2: Convert to fraction form
    10,554.89/15,832.40 = 3,977.55/x
  3. Step 3: Cross multiply
    10,554.89x = 15,832.40 × 3,977.55
  4. Step 4: Simplify right side
    10,554.89x = 62,974,142.73
  5. Step 5: Solve for x
    x = 62,974,142.73/10,554.89
  6. Step 6: Final answer
    x = 5,966.35

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1.5x scale

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.