Home / 8,748.14-12,073.38-5,390.24

Finding the Fourth Proportional to 8,748.14, 12,073.38 and 5,390.24

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Solution

The fourth proportional to 8,748.14, 12,073.38 and 5,390.24 is: 7,439.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.14 : 12,073.38 = 5,390.24 : x
  2. Step 2: Convert to fraction form
    8,748.14/12,073.38 = 5,390.24/x
  3. Step 3: Cross multiply
    8,748.14x = 12,073.38 × 5,390.24
  4. Step 4: Simplify right side
    8,748.14x = 65,078,415.81
  5. Step 5: Solve for x
    x = 65,078,415.81/8,748.14
  6. Step 6: Final answer
    x = 7,439.11

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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.