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Finding the Fourth Proportional to 13,334.19, 20,013.63 and 9,619.11

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Solution

The fourth proportional to 13,334.19, 20,013.63 and 9,619.11 is: 14,437.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.19 : 20,013.63 = 9,619.11 : x
  2. Step 2: Convert to fraction form
    13,334.19/20,013.63 = 9,619.11/x
  3. Step 3: Cross multiply
    13,334.19x = 20,013.63 × 9,619.11
  4. Step 4: Simplify right side
    13,334.19x = 192,513,308.47
  5. Step 5: Solve for x
    x = 192,513,308.47/13,334.19
  6. Step 6: Final answer
    x = 14,437.57

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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.