Home / 15,900.26-21,943.38-9,186.18

Finding the Fourth Proportional to 15,900.26, 21,943.38 and 9,186.18

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Solution

The fourth proportional to 15,900.26, 21,943.38 and 9,186.18 is: 12,677.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.26 : 21,943.38 = 9,186.18 : x
  2. Step 2: Convert to fraction form
    15,900.26/21,943.38 = 9,186.18/x
  3. Step 3: Cross multiply
    15,900.26x = 21,943.38 × 9,186.18
  4. Step 4: Simplify right side
    15,900.26x = 201,575,838.49
  5. Step 5: Solve for x
    x = 201,575,838.49/15,900.26
  6. Step 6: Final answer
    x = 12,677.52

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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.