Home / 12,376.38-18,565.43-4,980.90

Finding the Fourth Proportional to 12,376.38, 18,565.43 and 4,980.90

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Solution

The fourth proportional to 12,376.38, 18,565.43 and 4,980.90 is: 7,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.38 : 18,565.43 = 4,980.90 : x
  2. Step 2: Convert to fraction form
    12,376.38/18,565.43 = 4,980.90/x
  3. Step 3: Cross multiply
    12,376.38x = 18,565.43 × 4,980.90
  4. Step 4: Simplify right side
    12,376.38x = 92,472,525.38
  5. Step 5: Solve for x
    x = 92,472,525.38/12,376.38
  6. Step 6: Final answer
    x = 7,471.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.