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Finding the Fourth Proportional to 14,002.61, 21,012.08 and 5,243.67

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Solution

The fourth proportional to 14,002.61, 21,012.08 and 5,243.67 is: 7,868.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,002.61 : 21,012.08 = 5,243.67 : x
  2. Step 2: Convert to fraction form
    14,002.61/21,012.08 = 5,243.67/x
  3. Step 3: Cross multiply
    14,002.61x = 21,012.08 × 5,243.67
  4. Step 4: Simplify right side
    14,002.61x = 110,180,387.32
  5. Step 5: Solve for x
    x = 110,180,387.32/14,002.61
  6. Step 6: Final answer
    x = 7,868.56

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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.