Home / 15,659.13-21,610.14-8,585.49

Finding the Fourth Proportional to 15,659.13, 21,610.14 and 8,585.49

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Solution

The fourth proportional to 15,659.13, 21,610.14 and 8,585.49 is: 11,848.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.13 : 21,610.14 = 8,585.49 : x
  2. Step 2: Convert to fraction form
    15,659.13/21,610.14 = 8,585.49/x
  3. Step 3: Cross multiply
    15,659.13x = 21,610.14 × 8,585.49
  4. Step 4: Simplify right side
    15,659.13x = 185,533,640.87
  5. Step 5: Solve for x
    x = 185,533,640.87/15,659.13
  6. Step 6: Final answer
    x = 11,848.27

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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.