Home / 15,126.84-20,860.38-10,091.27

Finding the Fourth Proportional to 15,126.84, 20,860.38 and 10,091.27

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Solution

The fourth proportional to 15,126.84, 20,860.38 and 10,091.27 is: 13,916.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,126.84 : 20,860.38 = 10,091.27 : x
  2. Step 2: Convert to fraction form
    15,126.84/20,860.38 = 10,091.27/x
  3. Step 3: Cross multiply
    15,126.84x = 20,860.38 × 10,091.27
  4. Step 4: Simplify right side
    15,126.84x = 210,507,622.58
  5. Step 5: Solve for x
    x = 210,507,622.58/15,126.84
  6. Step 6: Final answer
    x = 13,916.17

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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.