Home / 11,870.96-16,381.78-6,565.68

Finding the Fourth Proportional to 11,870.96, 16,381.78 and 6,565.68

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Solution

The fourth proportional to 11,870.96, 16,381.78 and 6,565.68 is: 9,060.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.96 : 16,381.78 = 6,565.68 : x
  2. Step 2: Convert to fraction form
    11,870.96/16,381.78 = 6,565.68/x
  3. Step 3: Cross multiply
    11,870.96x = 16,381.78 × 6,565.68
  4. Step 4: Simplify right side
    11,870.96x = 107,557,525.31
  5. Step 5: Solve for x
    x = 107,557,525.31/11,870.96
  6. Step 6: Final answer
    x = 9,060.56

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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.