Home / 15,672.39-23,510.82-5,143.23

Finding the Fourth Proportional to 15,672.39, 23,510.82 and 5,143.23

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Solution

The fourth proportional to 15,672.39, 23,510.82 and 5,143.23 is: 7,715.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672.39 : 23,510.82 = 5,143.23 : x
  2. Step 2: Convert to fraction form
    15,672.39/23,510.82 = 5,143.23/x
  3. Step 3: Cross multiply
    15,672.39x = 23,510.82 × 5,143.23
  4. Step 4: Simplify right side
    15,672.39x = 120,921,554.75
  5. Step 5: Solve for x
    x = 120,921,554.75/15,672.39
  6. Step 6: Final answer
    x = 7,715.58

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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.