Home / 18,357.91-25,344.41-12,088.51

Finding the Fourth Proportional to 18,357.91, 25,344.41 and 12,088.51

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Solution

The fourth proportional to 18,357.91, 25,344.41 and 12,088.51 is: 16,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.91 : 25,344.41 = 12,088.51 : x
  2. Step 2: Convert to fraction form
    18,357.91/25,344.41 = 12,088.51/x
  3. Step 3: Cross multiply
    18,357.91x = 25,344.41 × 12,088.51
  4. Step 4: Simplify right side
    18,357.91x = 306,376,029.93
  5. Step 5: Solve for x
    x = 306,376,029.93/18,357.91
  6. Step 6: Final answer
    x = 16,689.05

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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.