Home / 15,387.21-23,064.71-8,715.38

Finding the Fourth Proportional to 15,387.21, 23,064.71 and 8,715.38

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Solution

The fourth proportional to 15,387.21, 23,064.71 and 8,715.38 is: 13,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,387.21 : 23,064.71 = 8,715.38 : x
  2. Step 2: Convert to fraction form
    15,387.21/23,064.71 = 8,715.38/x
  3. Step 3: Cross multiply
    15,387.21x = 23,064.71 × 8,715.38
  4. Step 4: Simplify right side
    15,387.21x = 201,017,553.34
  5. Step 5: Solve for x
    x = 201,017,553.34/15,387.21
  6. Step 6: Final answer
    x = 13,063.94

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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.