Home / 15,009.48-20,713.31-8,295.26

Finding the Fourth Proportional to 15,009.48, 20,713.31 and 8,295.26

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Solution

The fourth proportional to 15,009.48, 20,713.31 and 8,295.26 is: 11,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009.48 : 20,713.31 = 8,295.26 : x
  2. Step 2: Convert to fraction form
    15,009.48/20,713.31 = 8,295.26/x
  3. Step 3: Cross multiply
    15,009.48x = 20,713.31 × 8,295.26
  4. Step 4: Simplify right side
    15,009.48x = 171,822,291.91
  5. Step 5: Solve for x
    x = 171,822,291.91/15,009.48
  6. Step 6: Final answer
    x = 11,447.58

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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.