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Finding the Fourth Proportional to 9,929.10, 14,881.05 and 5,000.10

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Solution

The fourth proportional to 9,929.10, 14,881.05 and 5,000.10 is: 7,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.10 : 14,881.05 = 5,000.10 : x
  2. Step 2: Convert to fraction form
    9,929.10/14,881.05 = 5,000.10/x
  3. Step 3: Cross multiply
    9,929.10x = 14,881.05 × 5,000.10
  4. Step 4: Simplify right side
    9,929.10x = 74,406,738.11
  5. Step 5: Solve for x
    x = 74,406,738.11/9,929.10
  6. Step 6: Final answer
    x = 7,493.80

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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.