Home / 8,339.90-11,508.77-4,981.93

Finding the Fourth Proportional to 8,339.90, 11,508.77 and 4,981.93

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Solution

The fourth proportional to 8,339.90, 11,508.77 and 4,981.93 is: 6,874.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.90 : 11,508.77 = 4,981.93 : x
  2. Step 2: Convert to fraction form
    8,339.90/11,508.77 = 4,981.93/x
  3. Step 3: Cross multiply
    8,339.90x = 11,508.77 × 4,981.93
  4. Step 4: Simplify right side
    8,339.90x = 57,335,870.21
  5. Step 5: Solve for x
    x = 57,335,870.21/8,339.90
  6. Step 6: Final answer
    x = 6,874.89

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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.