Home / 13,588.71-20,386.32-5,686.82

Finding the Fourth Proportional to 13,588.71, 20,386.32 and 5,686.82

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Solution

The fourth proportional to 13,588.71, 20,386.32 and 5,686.82 is: 8,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,588.71 : 20,386.32 = 5,686.82 : x
  2. Step 2: Convert to fraction form
    13,588.71/20,386.32 = 5,686.82/x
  3. Step 3: Cross multiply
    13,588.71x = 20,386.32 × 5,686.82
  4. Step 4: Simplify right side
    13,588.71x = 115,933,400.17
  5. Step 5: Solve for x
    x = 115,933,400.17/13,588.71
  6. Step 6: Final answer
    x = 8,531.60

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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.