Home / 9,387.78-14,077.52-2,812.74

Finding the Fourth Proportional to 9,387.78, 14,077.52 and 2,812.74

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Solution

The fourth proportional to 9,387.78, 14,077.52 and 2,812.74 is: 4,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.78 : 14,077.52 = 2,812.74 : x
  2. Step 2: Convert to fraction form
    9,387.78/14,077.52 = 2,812.74/x
  3. Step 3: Cross multiply
    9,387.78x = 14,077.52 × 2,812.74
  4. Step 4: Simplify right side
    9,387.78x = 39,596,403.60
  5. Step 5: Solve for x
    x = 39,596,403.60/9,387.78
  6. Step 6: Final answer
    x = 4,217.87

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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.