Home / 10,580.12-15,870.30-3,653

Finding the Fourth Proportional to 10,580.12, 15,870.30 and 3,653

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Solution

The fourth proportional to 10,580.12, 15,870.30 and 3,653 is: 5,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,580.12 : 15,870.30 = 3,653 : x
  2. Step 2: Convert to fraction form
    10,580.12/15,870.30 = 3,653/x
  3. Step 3: Cross multiply
    10,580.12x = 15,870.30 × 3,653
  4. Step 4: Simplify right side
    10,580.12x = 57,974,205.90
  5. Step 5: Solve for x
    x = 57,974,205.90/10,580.12
  6. Step 6: Final answer
    x = 5,479.54

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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.