Home / 9,520.40-13,140.96-5,543.28

Finding the Fourth Proportional to 9,520.40, 13,140.96 and 5,543.28

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Solution

The fourth proportional to 9,520.40, 13,140.96 and 5,543.28 is: 7,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,520.40 : 13,140.96 = 5,543.28 : x
  2. Step 2: Convert to fraction form
    9,520.40/13,140.96 = 5,543.28/x
  3. Step 3: Cross multiply
    9,520.40x = 13,140.96 × 5,543.28
  4. Step 4: Simplify right side
    9,520.40x = 72,844,020.75
  5. Step 5: Solve for x
    x = 72,844,020.75/9,520.40
  6. Step 6: Final answer
    x = 7,651.36

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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.