Home / 18,353.90-25,328.94-10,397.28

Finding the Fourth Proportional to 18,353.90, 25,328.94 and 10,397.28

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Solution

The fourth proportional to 18,353.90, 25,328.94 and 10,397.28 is: 14,348.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.90 : 25,328.94 = 10,397.28 : x
  2. Step 2: Convert to fraction form
    18,353.90/25,328.94 = 10,397.28/x
  3. Step 3: Cross multiply
    18,353.90x = 25,328.94 × 10,397.28
  4. Step 4: Simplify right side
    18,353.90x = 263,352,081.28
  5. Step 5: Solve for x
    x = 263,352,081.28/18,353.90
  6. Step 6: Final answer
    x = 14,348.56

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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.