Home / 15,293.10-21,105.33-8,580.87

Finding the Fourth Proportional to 15,293.10, 21,105.33 and 8,580.87

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Solution

The fourth proportional to 15,293.10, 21,105.33 and 8,580.87 is: 11,842.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.10 : 21,105.33 = 8,580.87 : x
  2. Step 2: Convert to fraction form
    15,293.10/21,105.33 = 8,580.87/x
  3. Step 3: Cross multiply
    15,293.10x = 21,105.33 × 8,580.87
  4. Step 4: Simplify right side
    15,293.10x = 181,102,093.04
  5. Step 5: Solve for x
    x = 181,102,093.04/15,293.10
  6. Step 6: Final answer
    x = 11,842.08

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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.