Home / 18,348.86-25,320.75-9,965.18

Finding the Fourth Proportional to 18,348.86, 25,320.75 and 9,965.18

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Solution

The fourth proportional to 18,348.86, 25,320.75 and 9,965.18 is: 13,751.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.86 : 25,320.75 = 9,965.18 : x
  2. Step 2: Convert to fraction form
    18,348.86/25,320.75 = 9,965.18/x
  3. Step 3: Cross multiply
    18,348.86x = 25,320.75 × 9,965.18
  4. Step 4: Simplify right side
    18,348.86x = 252,325,831.49
  5. Step 5: Solve for x
    x = 252,325,831.49/18,348.86
  6. Step 6: Final answer
    x = 13,751.58

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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.