Home / 11,870.84-16,382.45-6,565.55

Finding the Fourth Proportional to 11,870.84, 16,382.45 and 6,565.55

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Solution

The fourth proportional to 11,870.84, 16,382.45 and 6,565.55 is: 9,060.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.84 : 16,382.45 = 6,565.55 : x
  2. Step 2: Convert to fraction form
    11,870.84/16,382.45 = 6,565.55/x
  3. Step 3: Cross multiply
    11,870.84x = 16,382.45 × 6,565.55
  4. Step 4: Simplify right side
    11,870.84x = 107,559,729.10
  5. Step 5: Solve for x
    x = 107,559,729.10/11,870.84
  6. Step 6: Final answer
    x = 9,060.83

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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.