Home / 15,422.40-21,292.74-10,126.62

Finding the Fourth Proportional to 15,422.40, 21,292.74 and 10,126.62

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Solution

The fourth proportional to 15,422.40, 21,292.74 and 10,126.62 is: 13,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,422.40 : 21,292.74 = 10,126.62 : x
  2. Step 2: Convert to fraction form
    15,422.40/21,292.74 = 10,126.62/x
  3. Step 3: Cross multiply
    15,422.40x = 21,292.74 × 10,126.62
  4. Step 4: Simplify right side
    15,422.40x = 215,623,486.74
  5. Step 5: Solve for x
    x = 215,623,486.74/15,422.40
  6. Step 6: Final answer
    x = 13,981.19

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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.