Home / 12,521.16-18,782.34-10,325.88

Finding the Fourth Proportional to 12,521.16, 18,782.34 and 10,325.88

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Solution

The fourth proportional to 12,521.16, 18,782.34 and 10,325.88 is: 15,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.16 : 18,782.34 = 10,325.88 : x
  2. Step 2: Convert to fraction form
    12,521.16/18,782.34 = 10,325.88/x
  3. Step 3: Cross multiply
    12,521.16x = 18,782.34 × 10,325.88
  4. Step 4: Simplify right side
    12,521.16x = 193,944,188.96
  5. Step 5: Solve for x
    x = 193,944,188.96/12,521.16
  6. Step 6: Final answer
    x = 15,489.31

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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.