Home / 15,294.42-21,105.97-8,579.93

Finding the Fourth Proportional to 15,294.42, 21,105.97 and 8,579.93

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Solution

The fourth proportional to 15,294.42, 21,105.97 and 8,579.93 is: 11,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.42 : 21,105.97 = 8,579.93 : x
  2. Step 2: Convert to fraction form
    15,294.42/21,105.97 = 8,579.93/x
  3. Step 3: Cross multiply
    15,294.42x = 21,105.97 × 8,579.93
  4. Step 4: Simplify right side
    15,294.42x = 181,087,618.20
  5. Step 5: Solve for x
    x = 181,087,618.20/15,294.42
  6. Step 6: Final answer
    x = 11,840.11

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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.