Home / 9,543.20-13,168.80-5,564.68

Finding the Fourth Proportional to 9,543.20, 13,168.80 and 5,564.68

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Solution

The fourth proportional to 9,543.20, 13,168.80 and 5,564.68 is: 7,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,543.20 : 13,168.80 = 5,564.68 : x
  2. Step 2: Convert to fraction form
    9,543.20/13,168.80 = 5,564.68/x
  3. Step 3: Cross multiply
    9,543.20x = 13,168.80 × 5,564.68
  4. Step 4: Simplify right side
    9,543.20x = 73,280,157.98
  5. Step 5: Solve for x
    x = 73,280,157.98/9,543.20
  6. Step 6: Final answer
    x = 7,678.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.