Home / 13,686.54-20,535.38-4,922.13

Finding the Fourth Proportional to 13,686.54, 20,535.38 and 4,922.13

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Solution

The fourth proportional to 13,686.54, 20,535.38 and 4,922.13 is: 7,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.54 : 20,535.38 = 4,922.13 : x
  2. Step 2: Convert to fraction form
    13,686.54/20,535.38 = 4,922.13/x
  3. Step 3: Cross multiply
    13,686.54x = 20,535.38 × 4,922.13
  4. Step 4: Simplify right side
    13,686.54x = 101,077,785.35
  5. Step 5: Solve for x
    x = 101,077,785.35/13,686.54
  6. Step 6: Final answer
    x = 7,385.20

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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.