Home / 18,660.06-25,742.55-10,700.70

Finding the Fourth Proportional to 18,660.06, 25,742.55 and 10,700.70

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Solution

The fourth proportional to 18,660.06, 25,742.55 and 10,700.70 is: 14,762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.06 : 25,742.55 = 10,700.70 : x
  2. Step 2: Convert to fraction form
    18,660.06/25,742.55 = 10,700.70/x
  3. Step 3: Cross multiply
    18,660.06x = 25,742.55 × 10,700.70
  4. Step 4: Simplify right side
    18,660.06x = 275,463,304.79
  5. Step 5: Solve for x
    x = 275,463,304.79/18,660.06
  6. Step 6: Final answer
    x = 14,762.19

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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.