Home / 10,551.87-15,830.07-3,156.93

Finding the Fourth Proportional to 10,551.87, 15,830.07 and 3,156.93

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Solution

The fourth proportional to 10,551.87, 15,830.07 and 3,156.93 is: 4,736.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,551.87 : 15,830.07 = 3,156.93 : x
  2. Step 2: Convert to fraction form
    10,551.87/15,830.07 = 3,156.93/x
  3. Step 3: Cross multiply
    10,551.87x = 15,830.07 × 3,156.93
  4. Step 4: Simplify right side
    10,551.87x = 49,974,422.89
  5. Step 5: Solve for x
    x = 49,974,422.89/10,551.87
  6. Step 6: Final answer
    x = 4,736.07

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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.