Home / 15,648.40-21,595.62-8,575.12

Finding the Fourth Proportional to 15,648.40, 21,595.62 and 8,575.12

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Solution

The fourth proportional to 15,648.40, 21,595.62 and 8,575.12 is: 11,834.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648.40 : 21,595.62 = 8,575.12 : x
  2. Step 2: Convert to fraction form
    15,648.40/21,595.62 = 8,575.12/x
  3. Step 3: Cross multiply
    15,648.40x = 21,595.62 × 8,575.12
  4. Step 4: Simplify right side
    15,648.40x = 185,185,032.97
  5. Step 5: Solve for x
    x = 185,185,032.97/15,648.40
  6. Step 6: Final answer
    x = 11,834.12

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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.