Home / 15,887.05-21,920.97-9,599.44

Finding the Fourth Proportional to 15,887.05, 21,920.97 and 9,599.44

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Solution

The fourth proportional to 15,887.05, 21,920.97 and 9,599.44 is: 13,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.05 : 21,920.97 = 9,599.44 : x
  2. Step 2: Convert to fraction form
    15,887.05/21,920.97 = 9,599.44/x
  3. Step 3: Cross multiply
    15,887.05x = 21,920.97 × 9,599.44
  4. Step 4: Simplify right side
    15,887.05x = 210,429,036.26
  5. Step 5: Solve for x
    x = 210,429,036.26/15,887.05
  6. Step 6: Final answer
    x = 13,245.32

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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.