Home / 15,298.10-21,110.13-8,582.79

Finding the Fourth Proportional to 15,298.10, 21,110.13 and 8,582.79

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Solution

The fourth proportional to 15,298.10, 21,110.13 and 8,582.79 is: 11,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.10 : 21,110.13 = 8,582.79 : x
  2. Step 2: Convert to fraction form
    15,298.10/21,110.13 = 8,582.79/x
  3. Step 3: Cross multiply
    15,298.10x = 21,110.13 × 8,582.79
  4. Step 4: Simplify right side
    15,298.10x = 181,183,812.66
  5. Step 5: Solve for x
    x = 181,183,812.66/15,298.10
  6. Step 6: Final answer
    x = 11,843.55

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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.