Home / 14,689.11-20,278.49-9,317.04

Finding the Fourth Proportional to 14,689.11, 20,278.49 and 9,317.04

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Solution

The fourth proportional to 14,689.11, 20,278.49 and 9,317.04 is: 12,862.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.11 : 20,278.49 = 9,317.04 : x
  2. Step 2: Convert to fraction form
    14,689.11/20,278.49 = 9,317.04/x
  3. Step 3: Cross multiply
    14,689.11x = 20,278.49 × 9,317.04
  4. Step 4: Simplify right side
    14,689.11x = 188,935,408.86
  5. Step 5: Solve for x
    x = 188,935,408.86/14,689.11
  6. Step 6: Final answer
    x = 12,862.28

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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.