Home / 15,480.36-21,364.29-8,767.62

Finding the Fourth Proportional to 15,480.36, 21,364.29 and 8,767.62

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Solution

The fourth proportional to 15,480.36, 21,364.29 and 8,767.62 is: 12,100.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.36 : 21,364.29 = 8,767.62 : x
  2. Step 2: Convert to fraction form
    15,480.36/21,364.29 = 8,767.62/x
  3. Step 3: Cross multiply
    15,480.36x = 21,364.29 × 8,767.62
  4. Step 4: Simplify right side
    15,480.36x = 187,313,976.29
  5. Step 5: Solve for x
    x = 187,313,976.29/15,480.36
  6. Step 6: Final answer
    x = 12,100.10

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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.