Home / 15,377.29-21,220.17-8,662.52

Finding the Fourth Proportional to 15,377.29, 21,220.17 and 8,662.52

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Solution

The fourth proportional to 15,377.29, 21,220.17 and 8,662.52 is: 11,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.29 : 21,220.17 = 8,662.52 : x
  2. Step 2: Convert to fraction form
    15,377.29/21,220.17 = 8,662.52/x
  3. Step 3: Cross multiply
    15,377.29x = 21,220.17 × 8,662.52
  4. Step 4: Simplify right side
    15,377.29x = 183,820,072.32
  5. Step 5: Solve for x
    x = 183,820,072.32/15,377.29
  6. Step 6: Final answer
    x = 11,954.00

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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.