Home / 15,409.90-23,100.78-5,546.92

Finding the Fourth Proportional to 15,409.90, 23,100.78 and 5,546.92

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Solution

The fourth proportional to 15,409.90, 23,100.78 and 5,546.92 is: 8,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.90 : 23,100.78 = 5,546.92 : x
  2. Step 2: Convert to fraction form
    15,409.90/23,100.78 = 5,546.92/x
  3. Step 3: Cross multiply
    15,409.90x = 23,100.78 × 5,546.92
  4. Step 4: Simplify right side
    15,409.90x = 128,138,178.60
  5. Step 5: Solve for x
    x = 128,138,178.60/15,409.90
  6. Step 6: Final answer
    x = 8,315.32

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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.