Home / 15,376.97-21,224.18-10,012.79

Finding the Fourth Proportional to 15,376.97, 21,224.18 and 10,012.79

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Solution

The fourth proportional to 15,376.97, 21,224.18 and 10,012.79 is: 13,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,376.97 : 21,224.18 = 10,012.79 : x
  2. Step 2: Convert to fraction form
    15,376.97/21,224.18 = 10,012.79/x
  3. Step 3: Cross multiply
    15,376.97x = 21,224.18 × 10,012.79
  4. Step 4: Simplify right side
    15,376.97x = 212,513,260.26
  5. Step 5: Solve for x
    x = 212,513,260.26/15,376.97
  6. Step 6: Final answer
    x = 13,820.23

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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.