Home / 13,750.70-20,626.04-4,985.60

Finding the Fourth Proportional to 13,750.70, 20,626.04 and 4,985.60

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Solution

The fourth proportional to 13,750.70, 20,626.04 and 4,985.60 is: 7,478.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.70 : 20,626.04 = 4,985.60 : x
  2. Step 2: Convert to fraction form
    13,750.70/20,626.04 = 4,985.60/x
  3. Step 3: Cross multiply
    13,750.70x = 20,626.04 × 4,985.60
  4. Step 4: Simplify right side
    13,750.70x = 102,833,056.97
  5. Step 5: Solve for x
    x = 102,833,056.97/13,750.70
  6. Step 6: Final answer
    x = 7,478.39

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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.