Home / 10,138.05-15,206.90-8,475.93

Finding the Fourth Proportional to 10,138.05, 15,206.90 and 8,475.93

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Solution

The fourth proportional to 10,138.05, 15,206.90 and 8,475.93 is: 12,713.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.05 : 15,206.90 = 8,475.93 : x
  2. Step 2: Convert to fraction form
    10,138.05/15,206.90 = 8,475.93/x
  3. Step 3: Cross multiply
    10,138.05x = 15,206.90 × 8,475.93
  4. Step 4: Simplify right side
    10,138.05x = 128,892,577.54
  5. Step 5: Solve for x
    x = 128,892,577.54/10,138.05
  6. Step 6: Final answer
    x = 12,713.74

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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.