Home / 15,785.20-23,661.60-8,754.40

Finding the Fourth Proportional to 15,785.20, 23,661.60 and 8,754.40

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Solution

The fourth proportional to 15,785.20, 23,661.60 and 8,754.40 is: 13,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785.20 : 23,661.60 = 8,754.40 : x
  2. Step 2: Convert to fraction form
    15,785.20/23,661.60 = 8,754.40/x
  3. Step 3: Cross multiply
    15,785.20x = 23,661.60 × 8,754.40
  4. Step 4: Simplify right side
    15,785.20x = 207,143,111.04
  5. Step 5: Solve for x
    x = 207,143,111.04/15,785.20
  6. Step 6: Final answer
    x = 13,122.62

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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.