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Finding the Fourth Proportional to 9,946.90, 14,920.35 and 9,784.90

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Solution

The fourth proportional to 9,946.90, 14,920.35 and 9,784.90 is: 14,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,946.90 : 14,920.35 = 9,784.90 : x
  2. Step 2: Convert to fraction form
    9,946.90/14,920.35 = 9,784.90/x
  3. Step 3: Cross multiply
    9,946.90x = 14,920.35 × 9,784.90
  4. Step 4: Simplify right side
    9,946.90x = 145,994,132.72
  5. Step 5: Solve for x
    x = 145,994,132.72/9,946.90
  6. Step 6: Final answer
    x = 14,677.35

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Similar ratio
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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.