Home / 10,448.80-15,662.40-5,761.60

Finding the Fourth Proportional to 10,448.80, 15,662.40 and 5,761.60

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Solution

The fourth proportional to 10,448.80, 15,662.40 and 5,761.60 is: 8,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,448.80 : 15,662.40 = 5,761.60 : x
  2. Step 2: Convert to fraction form
    10,448.80/15,662.40 = 5,761.60/x
  3. Step 3: Cross multiply
    10,448.80x = 15,662.40 × 5,761.60
  4. Step 4: Simplify right side
    10,448.80x = 90,240,483.84
  5. Step 5: Solve for x
    x = 90,240,483.84/10,448.80
  6. Step 6: Final answer
    x = 8,636.44

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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.