Home / 15,876.32-21,910.56-8,804.12

Finding the Fourth Proportional to 15,876.32, 21,910.56 and 8,804.12

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Solution

The fourth proportional to 15,876.32, 21,910.56 and 8,804.12 is: 12,150.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876.32 : 21,910.56 = 8,804.12 : x
  2. Step 2: Convert to fraction form
    15,876.32/21,910.56 = 8,804.12/x
  3. Step 3: Cross multiply
    15,876.32x = 21,910.56 × 8,804.12
  4. Step 4: Simplify right side
    15,876.32x = 192,903,199.51
  5. Step 5: Solve for x
    x = 192,903,199.51/15,876.32
  6. Step 6: Final answer
    x = 12,150.37

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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.