Home / 15,898.40-23,847.60-4,212.80

Finding the Fourth Proportional to 15,898.40, 23,847.60 and 4,212.80

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Solution

The fourth proportional to 15,898.40, 23,847.60 and 4,212.80 is: 6,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.40 : 23,847.60 = 4,212.80 : x
  2. Step 2: Convert to fraction form
    15,898.40/23,847.60 = 4,212.80/x
  3. Step 3: Cross multiply
    15,898.40x = 23,847.60 × 4,212.80
  4. Step 4: Simplify right side
    15,898.40x = 100,465,169.28
  5. Step 5: Solve for x
    x = 100,465,169.28/15,898.40
  6. Step 6: Final answer
    x = 6,319.20

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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.