Home / 13,552.92-20,312.37-7,312.68

Finding the Fourth Proportional to 13,552.92, 20,312.37 and 7,312.68

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Solution

The fourth proportional to 13,552.92, 20,312.37 and 7,312.68 is: 10,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,552.92 : 20,312.37 = 7,312.68 : x
  2. Step 2: Convert to fraction form
    13,552.92/20,312.37 = 7,312.68/x
  3. Step 3: Cross multiply
    13,552.92x = 20,312.37 × 7,312.68
  4. Step 4: Simplify right side
    13,552.92x = 148,537,861.85
  5. Step 5: Solve for x
    x = 148,537,861.85/13,552.92
  6. Step 6: Final answer
    x = 10,959.84

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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.