Home / 15,785.20-23,681.78-4,540.56

Finding the Fourth Proportional to 15,785.20, 23,681.78 and 4,540.56

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Solution

The fourth proportional to 15,785.20, 23,681.78 and 4,540.56 is: 6,811.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,785.20 : 23,681.78 = 4,540.56 : x
  2. Step 2: Convert to fraction form
    15,785.20/23,681.78 = 4,540.56/x
  3. Step 3: Cross multiply
    15,785.20x = 23,681.78 × 4,540.56
  4. Step 4: Simplify right side
    15,785.20x = 107,528,543.00
  5. Step 5: Solve for x
    x = 107,528,543.00/15,785.20
  6. Step 6: Final answer
    x = 6,811.98

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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.