Home / 10,278.29-15,408.21-8,534.50

Finding the Fourth Proportional to 10,278.29, 15,408.21 and 8,534.50

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Solution

The fourth proportional to 10,278.29, 15,408.21 and 8,534.50 is: 12,794.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.29 : 15,408.21 = 8,534.50 : x
  2. Step 2: Convert to fraction form
    10,278.29/15,408.21 = 8,534.50/x
  3. Step 3: Cross multiply
    10,278.29x = 15,408.21 × 8,534.50
  4. Step 4: Simplify right side
    10,278.29x = 131,501,325.57
  5. Step 5: Solve for x
    x = 131,501,325.57/10,278.29
  6. Step 6: Final answer
    x = 12,794.09

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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.