Home / 15,362.97-21,196.65-8,648.20

Finding the Fourth Proportional to 15,362.97, 21,196.65 and 8,648.20

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Solution

The fourth proportional to 15,362.97, 21,196.65 and 8,648.20 is: 11,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.97 : 21,196.65 = 8,648.20 : x
  2. Step 2: Convert to fraction form
    15,362.97/21,196.65 = 8,648.20/x
  3. Step 3: Cross multiply
    15,362.97x = 21,196.65 × 8,648.20
  4. Step 4: Simplify right side
    15,362.97x = 183,312,868.53
  5. Step 5: Solve for x
    x = 183,312,868.53/15,362.97
  6. Step 6: Final answer
    x = 11,932.12

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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.