Home / 10,869.91-15,000.46-6,393.67

Finding the Fourth Proportional to 10,869.91, 15,000.46 and 6,393.67

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Solution

The fourth proportional to 10,869.91, 15,000.46 and 6,393.67 is: 8,823.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.91 : 15,000.46 = 6,393.67 : x
  2. Step 2: Convert to fraction form
    10,869.91/15,000.46 = 6,393.67/x
  3. Step 3: Cross multiply
    10,869.91x = 15,000.46 × 6,393.67
  4. Step 4: Simplify right side
    10,869.91x = 95,907,937.60
  5. Step 5: Solve for x
    x = 95,907,937.60/10,869.91
  6. Step 6: Final answer
    x = 8,823.25

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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.