Home / 15,115.95-22,678.01-5,255.77

Finding the Fourth Proportional to 15,115.95, 22,678.01 and 5,255.77

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Solution

The fourth proportional to 15,115.95, 22,678.01 and 5,255.77 is: 7,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.95 : 22,678.01 = 5,255.77 : x
  2. Step 2: Convert to fraction form
    15,115.95/22,678.01 = 5,255.77/x
  3. Step 3: Cross multiply
    15,115.95x = 22,678.01 × 5,255.77
  4. Step 4: Simplify right side
    15,115.95x = 119,190,404.62
  5. Step 5: Solve for x
    x = 119,190,404.62/15,115.95
  6. Step 6: Final answer
    x = 7,885.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.