Home / 13,434.75-20,152.98-4,200.75

Finding the Fourth Proportional to 13,434.75, 20,152.98 and 4,200.75

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Solution

The fourth proportional to 13,434.75, 20,152.98 and 4,200.75 is: 6,301.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.75 : 20,152.98 = 4,200.75 : x
  2. Step 2: Convert to fraction form
    13,434.75/20,152.98 = 4,200.75/x
  3. Step 3: Cross multiply
    13,434.75x = 20,152.98 × 4,200.75
  4. Step 4: Simplify right side
    13,434.75x = 84,657,630.74
  5. Step 5: Solve for x
    x = 84,657,630.74/13,434.75
  6. Step 6: Final answer
    x = 6,301.39

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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.