Home / 14,945.11-20,632.83-9,916.22

Finding the Fourth Proportional to 14,945.11, 20,632.83 and 9,916.22

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Solution

The fourth proportional to 14,945.11, 20,632.83 and 9,916.22 is: 13,690.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.11 : 20,632.83 = 9,916.22 : x
  2. Step 2: Convert to fraction form
    14,945.11/20,632.83 = 9,916.22/x
  3. Step 3: Cross multiply
    14,945.11x = 20,632.83 × 9,916.22
  4. Step 4: Simplify right side
    14,945.11x = 204,599,695.90
  5. Step 5: Solve for x
    x = 204,599,695.90/14,945.11
  6. Step 6: Final answer
    x = 13,690.08

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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.