Home / 15,307.73-21,126.72-8,593.72

Finding the Fourth Proportional to 15,307.73, 21,126.72 and 8,593.72

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Solution

The fourth proportional to 15,307.73, 21,126.72 and 8,593.72 is: 11,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,307.73 : 21,126.72 = 8,593.72 : x
  2. Step 2: Convert to fraction form
    15,307.73/21,126.72 = 8,593.72/x
  3. Step 3: Cross multiply
    15,307.73x = 21,126.72 × 8,593.72
  4. Step 4: Simplify right side
    15,307.73x = 181,557,095.61
  5. Step 5: Solve for x
    x = 181,557,095.61/15,307.73
  6. Step 6: Final answer
    x = 11,860.49

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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.