Home / 8,947.60-13,421.40-3,104.80

Finding the Fourth Proportional to 8,947.60, 13,421.40 and 3,104.80

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Solution

The fourth proportional to 8,947.60, 13,421.40 and 3,104.80 is: 4,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.60 : 13,421.40 = 3,104.80 : x
  2. Step 2: Convert to fraction form
    8,947.60/13,421.40 = 3,104.80/x
  3. Step 3: Cross multiply
    8,947.60x = 13,421.40 × 3,104.80
  4. Step 4: Simplify right side
    8,947.60x = 41,670,762.72
  5. Step 5: Solve for x
    x = 41,670,762.72/8,947.60
  6. Step 6: Final answer
    x = 4,657.20

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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.