Home / 12,482.10-18,728.60-6,631.86

Finding the Fourth Proportional to 12,482.10, 18,728.60 and 6,631.86

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Solution

The fourth proportional to 12,482.10, 18,728.60 and 6,631.86 is: 9,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.10 : 18,728.60 = 6,631.86 : x
  2. Step 2: Convert to fraction form
    12,482.10/18,728.60 = 6,631.86/x
  3. Step 3: Cross multiply
    12,482.10x = 18,728.60 × 6,631.86
  4. Step 4: Simplify right side
    12,482.10x = 124,205,420.04
  5. Step 5: Solve for x
    x = 124,205,420.04/12,482.10
  6. Step 6: Final answer
    x = 9,950.68

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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.