Home / 15,389.76-23,084.52-8,811.28

Finding the Fourth Proportional to 15,389.76, 23,084.52 and 8,811.28

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Solution

The fourth proportional to 15,389.76, 23,084.52 and 8,811.28 is: 13,216.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.76 : 23,084.52 = 8,811.28 : x
  2. Step 2: Convert to fraction form
    15,389.76/23,084.52 = 8,811.28/x
  3. Step 3: Cross multiply
    15,389.76x = 23,084.52 × 8,811.28
  4. Step 4: Simplify right side
    15,389.76x = 203,404,169.39
  5. Step 5: Solve for x
    x = 203,404,169.39/15,389.76
  6. Step 6: Final answer
    x = 13,216.85

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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.