Home / 18,360.42-25,345.14-12,400.17

Finding the Fourth Proportional to 18,360.42, 25,345.14 and 12,400.17

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Solution

The fourth proportional to 18,360.42, 25,345.14 and 12,400.17 is: 17,117.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,360.42 : 25,345.14 = 12,400.17 : x
  2. Step 2: Convert to fraction form
    18,360.42/25,345.14 = 12,400.17/x
  3. Step 3: Cross multiply
    18,360.42x = 25,345.14 × 12,400.17
  4. Step 4: Simplify right side
    18,360.42x = 314,284,044.67
  5. Step 5: Solve for x
    x = 314,284,044.67/18,360.42
  6. Step 6: Final answer
    x = 17,117.48

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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.