Home / 15,824.82-21,837.34-8,750.78

Finding the Fourth Proportional to 15,824.82, 21,837.34 and 8,750.78

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Solution

The fourth proportional to 15,824.82, 21,837.34 and 8,750.78 is: 12,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,824.82 : 21,837.34 = 8,750.78 : x
  2. Step 2: Convert to fraction form
    15,824.82/21,837.34 = 8,750.78/x
  3. Step 3: Cross multiply
    15,824.82x = 21,837.34 × 8,750.78
  4. Step 4: Simplify right side
    15,824.82x = 191,093,758.13
  5. Step 5: Solve for x
    x = 191,093,758.13/15,824.82
  6. Step 6: Final answer
    x = 12,075.57

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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.