Home / 15,378.40-23,046.32-8,790.68

Finding the Fourth Proportional to 15,378.40, 23,046.32 and 8,790.68

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Solution

The fourth proportional to 15,378.40, 23,046.32 and 8,790.68 is: 13,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.40 : 23,046.32 = 8,790.68 : x
  2. Step 2: Convert to fraction form
    15,378.40/23,046.32 = 8,790.68/x
  3. Step 3: Cross multiply
    15,378.40x = 23,046.32 × 8,790.68
  4. Step 4: Simplify right side
    15,378.40x = 202,592,824.30
  5. Step 5: Solve for x
    x = 202,592,824.30/15,378.40
  6. Step 6: Final answer
    x = 13,173.86

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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.