Home / 10,868.61-15,000.89-6,154.41

Finding the Fourth Proportional to 10,868.61, 15,000.89 and 6,154.41

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Solution

The fourth proportional to 10,868.61, 15,000.89 and 6,154.41 is: 8,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.61 : 15,000.89 = 6,154.41 : x
  2. Step 2: Convert to fraction form
    10,868.61/15,000.89 = 6,154.41/x
  3. Step 3: Cross multiply
    10,868.61x = 15,000.89 × 6,154.41
  4. Step 4: Simplify right side
    10,868.61x = 92,321,596.65
  5. Step 5: Solve for x
    x = 92,321,596.65/10,868.61
  6. Step 6: Final answer
    x = 8,494.33

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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.