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Finding the Fourth Proportional to 10,599.95, 15,900.56 and 2,808.74

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Solution

The fourth proportional to 10,599.95, 15,900.56 and 2,808.74 is: 4,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,599.95 : 15,900.56 = 2,808.74 : x
  2. Step 2: Convert to fraction form
    10,599.95/15,900.56 = 2,808.74/x
  3. Step 3: Cross multiply
    10,599.95x = 15,900.56 × 2,808.74
  4. Step 4: Simplify right side
    10,599.95x = 44,660,538.89
  5. Step 5: Solve for x
    x = 44,660,538.89/10,599.95
  6. Step 6: Final answer
    x = 4,213.28

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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.