Home / 15,526.53-21,427.16-8,812.44

Finding the Fourth Proportional to 15,526.53, 21,427.16 and 8,812.44

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Solution

The fourth proportional to 15,526.53, 21,427.16 and 8,812.44 is: 12,161.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.53 : 21,427.16 = 8,812.44 : x
  2. Step 2: Convert to fraction form
    15,526.53/21,427.16 = 8,812.44/x
  3. Step 3: Cross multiply
    15,526.53x = 21,427.16 × 8,812.44
  4. Step 4: Simplify right side
    15,526.53x = 188,825,561.87
  5. Step 5: Solve for x
    x = 188,825,561.87/15,526.53
  6. Step 6: Final answer
    x = 12,161.48

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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.