Home / 15,536.04-21,428.64-9,559.86

Finding the Fourth Proportional to 15,536.04, 21,428.64 and 9,559.86

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Solution

The fourth proportional to 15,536.04, 21,428.64 and 9,559.86 is: 13,185.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,536.04 : 21,428.64 = 9,559.86 : x
  2. Step 2: Convert to fraction form
    15,536.04/21,428.64 = 9,559.86/x
  3. Step 3: Cross multiply
    15,536.04x = 21,428.64 × 9,559.86
  4. Step 4: Simplify right side
    15,536.04x = 204,854,798.39
  5. Step 5: Solve for x
    x = 204,854,798.39/15,536.04
  6. Step 6: Final answer
    x = 13,185.78

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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.