Home / 15,818.24-23,712.48-5,422.56

Finding the Fourth Proportional to 15,818.24, 23,712.48 and 5,422.56

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Solution

The fourth proportional to 15,818.24, 23,712.48 and 5,422.56 is: 8,128.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,818.24 : 23,712.48 = 5,422.56 : x
  2. Step 2: Convert to fraction form
    15,818.24/23,712.48 = 5,422.56/x
  3. Step 3: Cross multiply
    15,818.24x = 23,712.48 × 5,422.56
  4. Step 4: Simplify right side
    15,818.24x = 128,582,345.55
  5. Step 5: Solve for x
    x = 128,582,345.55/15,818.24
  6. Step 6: Final answer
    x = 8,128.74

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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.