Home / 8,298.10-12,445.32-4,780.66

Finding the Fourth Proportional to 8,298.10, 12,445.32 and 4,780.66

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Solution

The fourth proportional to 8,298.10, 12,445.32 and 4,780.66 is: 7,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,298.10 : 12,445.32 = 4,780.66 : x
  2. Step 2: Convert to fraction form
    8,298.10/12,445.32 = 4,780.66/x
  3. Step 3: Cross multiply
    8,298.10x = 12,445.32 × 4,780.66
  4. Step 4: Simplify right side
    8,298.10x = 59,496,843.51
  5. Step 5: Solve for x
    x = 59,496,843.51/8,298.10
  6. Step 6: Final answer
    x = 7,169.94

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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.