Home / 18,147.81-25,044.27-10,189.86

Finding the Fourth Proportional to 18,147.81, 25,044.27 and 10,189.86

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Solution

The fourth proportional to 18,147.81, 25,044.27 and 10,189.86 is: 14,062.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.81 : 25,044.27 = 10,189.86 : x
  2. Step 2: Convert to fraction form
    18,147.81/25,044.27 = 10,189.86/x
  3. Step 3: Cross multiply
    18,147.81x = 25,044.27 × 10,189.86
  4. Step 4: Simplify right side
    18,147.81x = 255,197,605.10
  5. Step 5: Solve for x
    x = 255,197,605.10/18,147.81
  6. Step 6: Final answer
    x = 14,062.17

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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.