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Finding the Fourth Proportional to 14,243.58, 21,373.02 and 7,318.08

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Solution

The fourth proportional to 14,243.58, 21,373.02 and 7,318.08 is: 10,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.58 : 21,373.02 = 7,318.08 : x
  2. Step 2: Convert to fraction form
    14,243.58/21,373.02 = 7,318.08/x
  3. Step 3: Cross multiply
    14,243.58x = 21,373.02 × 7,318.08
  4. Step 4: Simplify right side
    14,243.58x = 156,409,470.20
  5. Step 5: Solve for x
    x = 156,409,470.20/14,243.58
  6. Step 6: Final answer
    x = 10,981.05

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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.