Home / 10,187.78-15,284.76-4,922.93

Finding the Fourth Proportional to 10,187.78, 15,284.76 and 4,922.93

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Solution

The fourth proportional to 10,187.78, 15,284.76 and 4,922.93 is: 7,385.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.78 : 15,284.76 = 4,922.93 : x
  2. Step 2: Convert to fraction form
    10,187.78/15,284.76 = 4,922.93/x
  3. Step 3: Cross multiply
    10,187.78x = 15,284.76 × 4,922.93
  4. Step 4: Simplify right side
    10,187.78x = 75,245,803.55
  5. Step 5: Solve for x
    x = 75,245,803.55/10,187.78
  6. Step 6: Final answer
    x = 7,385.89

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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.