Home / 8,911.04-13,366.76-2,987.91

Finding the Fourth Proportional to 8,911.04, 13,366.76 and 2,987.91

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Solution

The fourth proportional to 8,911.04, 13,366.76 and 2,987.91 is: 4,481.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.04 : 13,366.76 = 2,987.91 : x
  2. Step 2: Convert to fraction form
    8,911.04/13,366.76 = 2,987.91/x
  3. Step 3: Cross multiply
    8,911.04x = 13,366.76 × 2,987.91
  4. Step 4: Simplify right side
    8,911.04x = 39,938,660.93
  5. Step 5: Solve for x
    x = 39,938,660.93/8,911.04
  6. Step 6: Final answer
    x = 4,481.93

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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.