Home / 7,348.76-10,138.48-5,439.12

Finding the Fourth Proportional to 7,348.76, 10,138.48 and 5,439.12

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Solution

The fourth proportional to 7,348.76, 10,138.48 and 5,439.12 is: 7,503.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,348.76 : 10,138.48 = 5,439.12 : x
  2. Step 2: Convert to fraction form
    7,348.76/10,138.48 = 5,439.12/x
  3. Step 3: Cross multiply
    7,348.76x = 10,138.48 × 5,439.12
  4. Step 4: Simplify right side
    7,348.76x = 55,144,409.34
  5. Step 5: Solve for x
    x = 55,144,409.34/7,348.76
  6. Step 6: Final answer
    x = 7,503.91

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Half scale
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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.