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Finding the Fourth Proportional to 10,001.80, 14,985.78 and 4,446.64

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Solution

The fourth proportional to 10,001.80, 14,985.78 and 4,446.64 is: 6,662.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.80 : 14,985.78 = 4,446.64 : x
  2. Step 2: Convert to fraction form
    10,001.80/14,985.78 = 4,446.64/x
  3. Step 3: Cross multiply
    10,001.80x = 14,985.78 × 4,446.64
  4. Step 4: Simplify right side
    10,001.80x = 66,636,368.78
  5. Step 5: Solve for x
    x = 66,636,368.78/10,001.80
  6. Step 6: Final answer
    x = 6,662.44

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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.