Home / 12,475.11-18,712.67-7,277.34

Finding the Fourth Proportional to 12,475.11, 18,712.67 and 7,277.34

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Solution

The fourth proportional to 12,475.11, 18,712.67 and 7,277.34 is: 10,916.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.11 : 18,712.67 = 7,277.34 : x
  2. Step 2: Convert to fraction form
    12,475.11/18,712.67 = 7,277.34/x
  3. Step 3: Cross multiply
    12,475.11x = 18,712.67 × 7,277.34
  4. Step 4: Simplify right side
    12,475.11x = 136,178,536.62
  5. Step 5: Solve for x
    x = 136,178,536.62/12,475.11
  6. Step 6: Final answer
    x = 10,916.02

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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.