Home / 15,293.10-21,106.04-8,578.71

Finding the Fourth Proportional to 15,293.10, 21,106.04 and 8,578.71

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Solution

The fourth proportional to 15,293.10, 21,106.04 and 8,578.71 is: 11,839.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.10 : 21,106.04 = 8,578.71 : x
  2. Step 2: Convert to fraction form
    15,293.10/21,106.04 = 8,578.71/x
  3. Step 3: Cross multiply
    15,293.10x = 21,106.04 × 8,578.71
  4. Step 4: Simplify right side
    15,293.10x = 181,062,553.51
  5. Step 5: Solve for x
    x = 181,062,553.51/15,293.10
  6. Step 6: Final answer
    x = 11,839.49

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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.