Home / 15,648.69-21,595.70-8,575.57

Finding the Fourth Proportional to 15,648.69, 21,595.70 and 8,575.57

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Solution

The fourth proportional to 15,648.69, 21,595.70 and 8,575.57 is: 11,834.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648.69 : 21,595.70 = 8,575.57 : x
  2. Step 2: Convert to fraction form
    15,648.69/21,595.70 = 8,575.57/x
  3. Step 3: Cross multiply
    15,648.69x = 21,595.70 × 8,575.57
  4. Step 4: Simplify right side
    15,648.69x = 185,195,286.19
  5. Step 5: Solve for x
    x = 185,195,286.19/15,648.69
  6. Step 6: Final answer
    x = 11,834.56

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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.