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Finding the Fourth Proportional to 18,577, 25,639.50 and 10,619.56

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Solution

The fourth proportional to 18,577, 25,639.50 and 10,619.56 is: 14,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577 : 25,639.50 = 10,619.56 : x
  2. Step 2: Convert to fraction form
    18,577/25,639.50 = 10,619.56/x
  3. Step 3: Cross multiply
    18,577x = 25,639.50 × 10,619.56
  4. Step 4: Simplify right side
    18,577x = 272,280,208.62
  5. Step 5: Solve for x
    x = 272,280,208.62/18,577
  6. Step 6: Final answer
    x = 14,656.84

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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.