Home / 9,897.28-13,655.84-5,481.28

Finding the Fourth Proportional to 9,897.28, 13,655.84 and 5,481.28

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Solution

The fourth proportional to 9,897.28, 13,655.84 and 5,481.28 is: 7,562.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,897.28 : 13,655.84 = 5,481.28 : x
  2. Step 2: Convert to fraction form
    9,897.28/13,655.84 = 5,481.28/x
  3. Step 3: Cross multiply
    9,897.28x = 13,655.84 × 5,481.28
  4. Step 4: Simplify right side
    9,897.28x = 74,851,482.68
  5. Step 5: Solve for x
    x = 74,851,482.68/9,897.28
  6. Step 6: Final answer
    x = 7,562.83

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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.