Home / 12,516.07-17,278.41-7,209.85

Finding the Fourth Proportional to 12,516.07, 17,278.41 and 7,209.85

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Solution

The fourth proportional to 12,516.07, 17,278.41 and 7,209.85 is: 9,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.07 : 17,278.41 = 7,209.85 : x
  2. Step 2: Convert to fraction form
    12,516.07/17,278.41 = 7,209.85/x
  3. Step 3: Cross multiply
    12,516.07x = 17,278.41 × 7,209.85
  4. Step 4: Simplify right side
    12,516.07x = 124,574,744.34
  5. Step 5: Solve for x
    x = 124,574,744.34/12,516.07
  6. Step 6: Final answer
    x = 9,953.18

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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.