Home / 18,658.86-25,749.18-10,275.36

Finding the Fourth Proportional to 18,658.86, 25,749.18 and 10,275.36

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Solution

The fourth proportional to 18,658.86, 25,749.18 and 10,275.36 is: 14,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.86 : 25,749.18 = 10,275.36 : x
  2. Step 2: Convert to fraction form
    18,658.86/25,749.18 = 10,275.36/x
  3. Step 3: Cross multiply
    18,658.86x = 25,749.18 × 10,275.36
  4. Step 4: Simplify right side
    18,658.86x = 264,582,094.20
  5. Step 5: Solve for x
    x = 264,582,094.20/18,658.86
  6. Step 6: Final answer
    x = 14,179.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.