Home / 15,599.16-21,536.90-13,917.65

Finding the Fourth Proportional to 15,599.16, 21,536.90 and 13,917.65

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Solution

The fourth proportional to 15,599.16, 21,536.90 and 13,917.65 is: 19,215.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,599.16 : 21,536.90 = 13,917.65 : x
  2. Step 2: Convert to fraction form
    15,599.16/21,536.90 = 13,917.65/x
  3. Step 3: Cross multiply
    15,599.16x = 21,536.90 × 13,917.65
  4. Step 4: Simplify right side
    15,599.16x = 299,743,006.25
  5. Step 5: Solve for x
    x = 299,743,006.25/15,599.16
  6. Step 6: Final answer
    x = 19,215.33

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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.