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Finding the Fourth Proportional to 15,041.88, 20,756.06 and 8,326.58

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Solution

The fourth proportional to 15,041.88, 20,756.06 and 8,326.58 is: 11,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,041.88 : 20,756.06 = 8,326.58 : x
  2. Step 2: Convert to fraction form
    15,041.88/20,756.06 = 8,326.58/x
  3. Step 3: Cross multiply
    15,041.88x = 20,756.06 × 8,326.58
  4. Step 4: Simplify right side
    15,041.88x = 172,826,994.07
  5. Step 5: Solve for x
    x = 172,826,994.07/15,041.88
  6. Step 6: Final answer
    x = 11,489.72

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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.