Home / 15,159.33-20,918.39-8,444.70

Finding the Fourth Proportional to 15,159.33, 20,918.39 and 8,444.70

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Solution

The fourth proportional to 15,159.33, 20,918.39 and 8,444.70 is: 11,652.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.33 : 20,918.39 = 8,444.70 : x
  2. Step 2: Convert to fraction form
    15,159.33/20,918.39 = 8,444.70/x
  3. Step 3: Cross multiply
    15,159.33x = 20,918.39 × 8,444.70
  4. Step 4: Simplify right side
    15,159.33x = 176,649,485.81
  5. Step 5: Solve for x
    x = 176,649,485.81/15,159.33
  6. Step 6: Final answer
    x = 11,652.86

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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.