Home / 18,661.12-25,752.96-10,278.40

Finding the Fourth Proportional to 18,661.12, 25,752.96 and 10,278.40

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Solution

The fourth proportional to 18,661.12, 25,752.96 and 10,278.40 is: 14,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.12 : 25,752.96 = 10,278.40 : x
  2. Step 2: Convert to fraction form
    18,661.12/25,752.96 = 10,278.40/x
  3. Step 3: Cross multiply
    18,661.12x = 25,752.96 × 10,278.40
  4. Step 4: Simplify right side
    18,661.12x = 264,699,224.06
  5. Step 5: Solve for x
    x = 264,699,224.06/18,661.12
  6. Step 6: Final answer
    x = 14,184.53

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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.