Home / 18,345.17-25,320.87-10,392.12

Finding the Fourth Proportional to 18,345.17, 25,320.87 and 10,392.12

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Solution

The fourth proportional to 18,345.17, 25,320.87 and 10,392.12 is: 14,343.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.17 : 25,320.87 = 10,392.12 : x
  2. Step 2: Convert to fraction form
    18,345.17/25,320.87 = 10,392.12/x
  3. Step 3: Cross multiply
    18,345.17x = 25,320.87 × 10,392.12
  4. Step 4: Simplify right side
    18,345.17x = 263,137,519.54
  5. Step 5: Solve for x
    x = 263,137,519.54/18,345.17
  6. Step 6: Final answer
    x = 14,343.69

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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.