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Finding the Fourth Proportional to 8,898.69, 13,347.88 and 2,658.72

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Solution

The fourth proportional to 8,898.69, 13,347.88 and 2,658.72 is: 3,988.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.69 : 13,347.88 = 2,658.72 : x
  2. Step 2: Convert to fraction form
    8,898.69/13,347.88 = 2,658.72/x
  3. Step 3: Cross multiply
    8,898.69x = 13,347.88 × 2,658.72
  4. Step 4: Simplify right side
    8,898.69x = 35,488,275.51
  5. Step 5: Solve for x
    x = 35,488,275.51/8,898.69
  6. Step 6: Final answer
    x = 3,988.03

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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.