Home / 15,538.16-21,426.12-11,552.72

Finding the Fourth Proportional to 15,538.16, 21,426.12 and 11,552.72

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Solution

The fourth proportional to 15,538.16, 21,426.12 and 11,552.72 is: 15,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.16 : 21,426.12 = 11,552.72 : x
  2. Step 2: Convert to fraction form
    15,538.16/21,426.12 = 11,552.72/x
  3. Step 3: Cross multiply
    15,538.16x = 21,426.12 × 11,552.72
  4. Step 4: Simplify right side
    15,538.16x = 247,529,965.05
  5. Step 5: Solve for x
    x = 247,529,965.05/15,538.16
  6. Step 6: Final answer
    x = 15,930.46

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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.