Home / 9,805.80-13,532.58-5,557.20

Finding the Fourth Proportional to 9,805.80, 13,532.58 and 5,557.20

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Solution

The fourth proportional to 9,805.80, 13,532.58 and 5,557.20 is: 7,669.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,805.80 : 13,532.58 = 5,557.20 : x
  2. Step 2: Convert to fraction form
    9,805.80/13,532.58 = 5,557.20/x
  3. Step 3: Cross multiply
    9,805.80x = 13,532.58 × 5,557.20
  4. Step 4: Simplify right side
    9,805.80x = 75,203,253.58
  5. Step 5: Solve for x
    x = 75,203,253.58/9,805.80
  6. Step 6: Final answer
    x = 7,669.26

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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.