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Finding the Fourth Proportional to 10,948.70, 16,423.05 and 9,782.30

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Solution

The fourth proportional to 10,948.70, 16,423.05 and 9,782.30 is: 14,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.70 : 16,423.05 = 9,782.30 : x
  2. Step 2: Convert to fraction form
    10,948.70/16,423.05 = 9,782.30/x
  3. Step 3: Cross multiply
    10,948.70x = 16,423.05 × 9,782.30
  4. Step 4: Simplify right side
    10,948.70x = 160,655,202.02
  5. Step 5: Solve for x
    x = 160,655,202.02/10,948.70
  6. Step 6: Final answer
    x = 14,673.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.