Home / 13,035.74-17,979.76-8,557.85

Finding the Fourth Proportional to 13,035.74, 17,979.76 and 8,557.85

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Solution

The fourth proportional to 13,035.74, 17,979.76 and 8,557.85 is: 11,803.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.74 : 17,979.76 = 8,557.85 : x
  2. Step 2: Convert to fraction form
    13,035.74/17,979.76 = 8,557.85/x
  3. Step 3: Cross multiply
    13,035.74x = 17,979.76 × 8,557.85
  4. Step 4: Simplify right side
    13,035.74x = 153,868,096.62
  5. Step 5: Solve for x
    x = 153,868,096.62/13,035.74
  6. Step 6: Final answer
    x = 11,803.56

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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.