Home / 13,585.87-20,377.06-5,260.18

Finding the Fourth Proportional to 13,585.87, 20,377.06 and 5,260.18

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Solution

The fourth proportional to 13,585.87, 20,377.06 and 5,260.18 is: 7,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.87 : 20,377.06 = 5,260.18 : x
  2. Step 2: Convert to fraction form
    13,585.87/20,377.06 = 5,260.18/x
  3. Step 3: Cross multiply
    13,585.87x = 20,377.06 × 5,260.18
  4. Step 4: Simplify right side
    13,585.87x = 107,187,003.47
  5. Step 5: Solve for x
    x = 107,187,003.47/13,585.87
  6. Step 6: Final answer
    x = 7,889.59

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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.