Home / 10,620.25-15,932.30-4,376.79

Finding the Fourth Proportional to 10,620.25, 15,932.30 and 4,376.79

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Solution

The fourth proportional to 10,620.25, 15,932.30 and 4,376.79 is: 6,565.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.25 : 15,932.30 = 4,376.79 : x
  2. Step 2: Convert to fraction form
    10,620.25/15,932.30 = 4,376.79/x
  3. Step 3: Cross multiply
    10,620.25x = 15,932.30 × 4,376.79
  4. Step 4: Simplify right side
    10,620.25x = 69,732,331.32
  5. Step 5: Solve for x
    x = 69,732,331.32/10,620.25
  6. Step 6: Final answer
    x = 6,565.98

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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.