Home / 12,516.33-17,271.75-7,478.94

Finding the Fourth Proportional to 12,516.33, 17,271.75 and 7,478.94

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Solution

The fourth proportional to 12,516.33, 17,271.75 and 7,478.94 is: 10,320.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516.33 : 17,271.75 = 7,478.94 : x
  2. Step 2: Convert to fraction form
    12,516.33/17,271.75 = 7,478.94/x
  3. Step 3: Cross multiply
    12,516.33x = 17,271.75 × 7,478.94
  4. Step 4: Simplify right side
    12,516.33x = 129,174,381.95
  5. Step 5: Solve for x
    x = 129,174,381.95/12,516.33
  6. Step 6: Final answer
    x = 10,320.47

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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.