Home / 13,004.70-17,931.28-12,304.05

Finding the Fourth Proportional to 13,004.70, 17,931.28 and 12,304.05

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Solution

The fourth proportional to 13,004.70, 17,931.28 and 12,304.05 is: 16,965.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,004.70 : 17,931.28 = 12,304.05 : x
  2. Step 2: Convert to fraction form
    13,004.70/17,931.28 = 12,304.05/x
  3. Step 3: Cross multiply
    13,004.70x = 17,931.28 × 12,304.05
  4. Step 4: Simplify right side
    13,004.70x = 220,627,365.68
  5. Step 5: Solve for x
    x = 220,627,365.68/13,004.70
  6. Step 6: Final answer
    x = 16,965.20

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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.