Home / 20,697.68-28,562.64-11,266.28

Finding the Fourth Proportional to 20,697.68, 28,562.64 and 11,266.28

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Solution

The fourth proportional to 20,697.68, 28,562.64 and 11,266.28 is: 15,547.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.68 : 28,562.64 = 11,266.28 : x
  2. Step 2: Convert to fraction form
    20,697.68/28,562.64 = 11,266.28/x
  3. Step 3: Cross multiply
    20,697.68x = 28,562.64 × 11,266.28
  4. Step 4: Simplify right side
    20,697.68x = 321,794,699.78
  5. Step 5: Solve for x
    x = 321,794,699.78/20,697.68
  6. Step 6: Final answer
    x = 15,547.38

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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.