Home / 8,931.73-13,394.92-5,605.03

Finding the Fourth Proportional to 8,931.73, 13,394.92 and 5,605.03

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Solution

The fourth proportional to 8,931.73, 13,394.92 and 5,605.03 is: 8,405.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.73 : 13,394.92 = 5,605.03 : x
  2. Step 2: Convert to fraction form
    8,931.73/13,394.92 = 5,605.03/x
  3. Step 3: Cross multiply
    8,931.73x = 13,394.92 × 5,605.03
  4. Step 4: Simplify right side
    8,931.73x = 75,078,928.45
  5. Step 5: Solve for x
    x = 75,078,928.45/8,931.73
  6. Step 6: Final answer
    x = 8,405.87

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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.