Home / 15,599.10-21,520.30-11,340.82

Finding the Fourth Proportional to 15,599.10, 21,520.30 and 11,340.82

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Solution

The fourth proportional to 15,599.10, 21,520.30 and 11,340.82 is: 15,645.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,599.10 : 21,520.30 = 11,340.82 : x
  2. Step 2: Convert to fraction form
    15,599.10/21,520.30 = 11,340.82/x
  3. Step 3: Cross multiply
    15,599.10x = 21,520.30 × 11,340.82
  4. Step 4: Simplify right side
    15,599.10x = 244,057,848.65
  5. Step 5: Solve for x
    x = 244,057,848.65/15,599.10
  6. Step 6: Final answer
    x = 15,645.64

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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.