Home / 13,586.27-20,386.76-5,689.48

Finding the Fourth Proportional to 13,586.27, 20,386.76 and 5,689.48

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Solution

The fourth proportional to 13,586.27, 20,386.76 and 5,689.48 is: 8,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.27 : 20,386.76 = 5,689.48 : x
  2. Step 2: Convert to fraction form
    13,586.27/20,386.76 = 5,689.48/x
  3. Step 3: Cross multiply
    13,586.27x = 20,386.76 × 5,689.48
  4. Step 4: Simplify right side
    13,586.27x = 115,990,063.28
  5. Step 5: Solve for x
    x = 115,990,063.28/13,586.27
  6. Step 6: Final answer
    x = 8,537.30

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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.