Home / 15,401.90-21,263.78-10,105.97

Finding the Fourth Proportional to 15,401.90, 21,263.78 and 10,105.97

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Solution

The fourth proportional to 15,401.90, 21,263.78 and 10,105.97 is: 13,952.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401.90 : 21,263.78 = 10,105.97 : x
  2. Step 2: Convert to fraction form
    15,401.90/21,263.78 = 10,105.97/x
  3. Step 3: Cross multiply
    15,401.90x = 21,263.78 × 10,105.97
  4. Step 4: Simplify right side
    15,401.90x = 214,891,041.71
  5. Step 5: Solve for x
    x = 214,891,041.71/15,401.90
  6. Step 6: Final answer
    x = 13,952.24

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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.