Home / 18,345.78-25,316.91-10,169.15

Finding the Fourth Proportional to 18,345.78, 25,316.91 and 10,169.15

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Solution

The fourth proportional to 18,345.78, 25,316.91 and 10,169.15 is: 14,033.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.78 : 25,316.91 = 10,169.15 : x
  2. Step 2: Convert to fraction form
    18,345.78/25,316.91 = 10,169.15/x
  3. Step 3: Cross multiply
    18,345.78x = 25,316.91 × 10,169.15
  4. Step 4: Simplify right side
    18,345.78x = 257,451,328.74
  5. Step 5: Solve for x
    x = 257,451,328.74/18,345.78
  6. Step 6: Final answer
    x = 14,033.27

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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.