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Finding the Fourth Proportional to 9,711.60, 14,543.10 and 9,274.20

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Solution

The fourth proportional to 9,711.60, 14,543.10 and 9,274.20 is: 13,888.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711.60 : 14,543.10 = 9,274.20 : x
  2. Step 2: Convert to fraction form
    9,711.60/14,543.10 = 9,274.20/x
  3. Step 3: Cross multiply
    9,711.60x = 14,543.10 × 9,274.20
  4. Step 4: Simplify right side
    9,711.60x = 134,875,618.02
  5. Step 5: Solve for x
    x = 134,875,618.02/9,711.60
  6. Step 6: Final answer
    x = 13,888.09

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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.