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Finding the Fourth Proportional to 8,535.70, 12,801.93 and 2,987.74

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Solution

The fourth proportional to 8,535.70, 12,801.93 and 2,987.74 is: 4,481.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,535.70 : 12,801.93 = 2,987.74 : x
  2. Step 2: Convert to fraction form
    8,535.70/12,801.93 = 2,987.74/x
  3. Step 3: Cross multiply
    8,535.70x = 12,801.93 × 2,987.74
  4. Step 4: Simplify right side
    8,535.70x = 38,248,838.34
  5. Step 5: Solve for x
    x = 38,248,838.34/8,535.70
  6. Step 6: Final answer
    x = 4,481.04

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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.