Home / 12,432.72-18,642.60-4,635.12

Finding the Fourth Proportional to 12,432.72, 18,642.60 and 4,635.12

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Solution

The fourth proportional to 12,432.72, 18,642.60 and 4,635.12 is: 6,950.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.72 : 18,642.60 = 4,635.12 : x
  2. Step 2: Convert to fraction form
    12,432.72/18,642.60 = 4,635.12/x
  3. Step 3: Cross multiply
    12,432.72x = 18,642.60 × 4,635.12
  4. Step 4: Simplify right side
    12,432.72x = 86,410,688.11
  5. Step 5: Solve for x
    x = 86,410,688.11/12,432.72
  6. Step 6: Final answer
    x = 6,950.26

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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.