Home / 13,117.12-19,669.80-4,229.70

Finding the Fourth Proportional to 13,117.12, 19,669.80 and 4,229.70

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Solution

The fourth proportional to 13,117.12, 19,669.80 and 4,229.70 is: 6,342.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.12 : 19,669.80 = 4,229.70 : x
  2. Step 2: Convert to fraction form
    13,117.12/19,669.80 = 4,229.70/x
  3. Step 3: Cross multiply
    13,117.12x = 19,669.80 × 4,229.70
  4. Step 4: Simplify right side
    13,117.12x = 83,197,353.06
  5. Step 5: Solve for x
    x = 83,197,353.06/13,117.12
  6. Step 6: Final answer
    x = 6,342.65

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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.