Home / 8,445.48-12,661.40-3,518.82

Finding the Fourth Proportional to 8,445.48, 12,661.40 and 3,518.82

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Solution

The fourth proportional to 8,445.48, 12,661.40 and 3,518.82 is: 5,275.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.48 : 12,661.40 = 3,518.82 : x
  2. Step 2: Convert to fraction form
    8,445.48/12,661.40 = 3,518.82/x
  3. Step 3: Cross multiply
    8,445.48x = 12,661.40 × 3,518.82
  4. Step 4: Simplify right side
    8,445.48x = 44,553,169.95
  5. Step 5: Solve for x
    x = 44,553,169.95/8,445.48
  6. Step 6: Final answer
    x = 5,275.39

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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.