Home / 11,421.12-17,097.12-10,557.12

Finding the Fourth Proportional to 11,421.12, 17,097.12 and 10,557.12

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Solution

The fourth proportional to 11,421.12, 17,097.12 and 10,557.12 is: 15,803.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,421.12 : 17,097.12 = 10,557.12 : x
  2. Step 2: Convert to fraction form
    11,421.12/17,097.12 = 10,557.12/x
  3. Step 3: Cross multiply
    11,421.12x = 17,097.12 × 10,557.12
  4. Step 4: Simplify right side
    11,421.12x = 180,496,347.49
  5. Step 5: Solve for x
    x = 180,496,347.49/11,421.12
  6. Step 6: Final answer
    x = 15,803.73

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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.