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Finding the Fourth Proportional to 14,697, 20,299.14 and 9,720.36

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Solution

The fourth proportional to 14,697, 20,299.14 and 9,720.36 is: 13,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,697 : 20,299.14 = 9,720.36 : x
  2. Step 2: Convert to fraction form
    14,697/20,299.14 = 9,720.36/x
  3. Step 3: Cross multiply
    14,697x = 20,299.14 × 9,720.36
  4. Step 4: Simplify right side
    14,697x = 197,314,948.49
  5. Step 5: Solve for x
    x = 197,314,948.49/14,697
  6. Step 6: Final answer
    x = 13,425.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.