Home / 18,456.19-25,470.15-10,072.69

Finding the Fourth Proportional to 18,456.19, 25,470.15 and 10,072.69

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Solution

The fourth proportional to 18,456.19, 25,470.15 and 10,072.69 is: 13,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.19 : 25,470.15 = 10,072.69 : x
  2. Step 2: Convert to fraction form
    18,456.19/25,470.15 = 10,072.69/x
  3. Step 3: Cross multiply
    18,456.19x = 25,470.15 × 10,072.69
  4. Step 4: Simplify right side
    18,456.19x = 256,552,823.76
  5. Step 5: Solve for x
    x = 256,552,823.76/18,456.19
  6. Step 6: Final answer
    x = 13,900.64

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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.