Home / 15,249.41-21,041.40-8,788.04

Finding the Fourth Proportional to 15,249.41, 21,041.40 and 8,788.04

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Solution

The fourth proportional to 15,249.41, 21,041.40 and 8,788.04 is: 12,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,249.41 : 21,041.40 = 8,788.04 : x
  2. Step 2: Convert to fraction form
    15,249.41/21,041.40 = 8,788.04/x
  3. Step 3: Cross multiply
    15,249.41x = 21,041.40 × 8,788.04
  4. Step 4: Simplify right side
    15,249.41x = 184,912,559.65
  5. Step 5: Solve for x
    x = 184,912,559.65/15,249.41
  6. Step 6: Final answer
    x = 12,125.89

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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.