Home / 10,339.24-15,487.45-5,393.89

Finding the Fourth Proportional to 10,339.24, 15,487.45 and 5,393.89

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Solution

The fourth proportional to 10,339.24, 15,487.45 and 5,393.89 is: 8,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.24 : 15,487.45 = 5,393.89 : x
  2. Step 2: Convert to fraction form
    10,339.24/15,487.45 = 5,393.89/x
  3. Step 3: Cross multiply
    10,339.24x = 15,487.45 × 5,393.89
  4. Step 4: Simplify right side
    10,339.24x = 83,537,601.68
  5. Step 5: Solve for x
    x = 83,537,601.68/10,339.24
  6. Step 6: Final answer
    x = 8,079.67

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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.