Home / 8,394.18-11,591.70-5,415.18

Finding the Fourth Proportional to 8,394.18, 11,591.70 and 5,415.18

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Solution

The fourth proportional to 8,394.18, 11,591.70 and 5,415.18 is: 7,477.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,394.18 : 11,591.70 = 5,415.18 : x
  2. Step 2: Convert to fraction form
    8,394.18/11,591.70 = 5,415.18/x
  3. Step 3: Cross multiply
    8,394.18x = 11,591.70 × 5,415.18
  4. Step 4: Simplify right side
    8,394.18x = 62,771,142.01
  5. Step 5: Solve for x
    x = 62,771,142.01/8,394.18
  6. Step 6: Final answer
    x = 7,477.94

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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.