Home / 15,249.39-21,041.38-8,788.02

Finding the Fourth Proportional to 15,249.39, 21,041.38 and 8,788.02

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Solution

The fourth proportional to 15,249.39, 21,041.38 and 8,788.02 is: 12,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.39 : 21,041.38 = 8,788.02 : x
  2. Step 2: Convert to fraction form
    15,249.39/21,041.38 = 8,788.02/x
  3. Step 3: Cross multiply
    15,249.39x = 21,041.38 × 8,788.02
  4. Step 4: Simplify right side
    15,249.39x = 184,912,068.27
  5. Step 5: Solve for x
    x = 184,912,068.27/15,249.39
  6. Step 6: Final answer
    x = 12,125.87

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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.