Home / 13,572.11-18,729.53-8,266.95

Finding the Fourth Proportional to 13,572.11, 18,729.53 and 8,266.95

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Solution

The fourth proportional to 13,572.11, 18,729.53 and 8,266.95 is: 11,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.11 : 18,729.53 = 8,266.95 : x
  2. Step 2: Convert to fraction form
    13,572.11/18,729.53 = 8,266.95/x
  3. Step 3: Cross multiply
    13,572.11x = 18,729.53 × 8,266.95
  4. Step 4: Simplify right side
    13,572.11x = 154,836,088.03
  5. Step 5: Solve for x
    x = 154,836,088.03/13,572.11
  6. Step 6: Final answer
    x = 11,408.40

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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.