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Finding the Fourth Proportional to 14,397.78, 21,554.91 and 8,834.34

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Solution

The fourth proportional to 14,397.78, 21,554.91 and 8,834.34 is: 13,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,397.78 : 21,554.91 = 8,834.34 : x
  2. Step 2: Convert to fraction form
    14,397.78/21,554.91 = 8,834.34/x
  3. Step 3: Cross multiply
    14,397.78x = 21,554.91 × 8,834.34
  4. Step 4: Simplify right side
    14,397.78x = 190,423,403.61
  5. Step 5: Solve for x
    x = 190,423,403.61/14,397.78
  6. Step 6: Final answer
    x = 13,225.89

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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.