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Finding the Fourth Proportional to 19,266.92, 28,900.25 and 9,909.55

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Solution

The fourth proportional to 19,266.92, 28,900.25 and 9,909.55 is: 14,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.92 : 28,900.25 = 9,909.55 : x
  2. Step 2: Convert to fraction form
    19,266.92/28,900.25 = 9,909.55/x
  3. Step 3: Cross multiply
    19,266.92x = 28,900.25 × 9,909.55
  4. Step 4: Simplify right side
    19,266.92x = 286,388,424.91
  5. Step 5: Solve for x
    x = 286,388,424.91/19,266.92
  6. Step 6: Final answer
    x = 14,864.25

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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.