Home / 8,947.71-13,421.57-3,104.30

Finding the Fourth Proportional to 8,947.71, 13,421.57 and 3,104.30

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Solution

The fourth proportional to 8,947.71, 13,421.57 and 3,104.30 is: 4,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.71 : 13,421.57 = 3,104.30 : x
  2. Step 2: Convert to fraction form
    8,947.71/13,421.57 = 3,104.30/x
  3. Step 3: Cross multiply
    8,947.71x = 13,421.57 × 3,104.30
  4. Step 4: Simplify right side
    8,947.71x = 41,664,597.78
  5. Step 5: Solve for x
    x = 41,664,597.78/8,947.71
  6. Step 6: Final answer
    x = 4,656.45

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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.