Home / 18,870.12-26,040.72-10,486.62

Finding the Fourth Proportional to 18,870.12, 26,040.72 and 10,486.62

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Solution

The fourth proportional to 18,870.12, 26,040.72 and 10,486.62 is: 14,471.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.12 : 26,040.72 = 10,486.62 : x
  2. Step 2: Convert to fraction form
    18,870.12/26,040.72 = 10,486.62/x
  3. Step 3: Cross multiply
    18,870.12x = 26,040.72 × 10,486.62
  4. Step 4: Simplify right side
    18,870.12x = 273,079,135.17
  5. Step 5: Solve for x
    x = 273,079,135.17/18,870.12
  6. Step 6: Final answer
    x = 14,471.51

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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.