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Finding the Fourth Proportional to 8,387.99, 11,574.50 and 5,030.94

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Solution

The fourth proportional to 8,387.99, 11,574.50 and 5,030.94 is: 6,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.99 : 11,574.50 = 5,030.94 : x
  2. Step 2: Convert to fraction form
    8,387.99/11,574.50 = 5,030.94/x
  3. Step 3: Cross multiply
    8,387.99x = 11,574.50 × 5,030.94
  4. Step 4: Simplify right side
    8,387.99x = 58,230,633.28
  5. Step 5: Solve for x
    x = 58,230,633.28/8,387.99
  6. Step 6: Final answer
    x = 6,942.14

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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.