Home / 15,016.74-20,720.25-9,425.22

Finding the Fourth Proportional to 15,016.74, 20,720.25 and 9,425.22

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Solution

The fourth proportional to 15,016.74, 20,720.25 and 9,425.22 is: 13,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,016.74 : 20,720.25 = 9,425.22 : x
  2. Step 2: Convert to fraction form
    15,016.74/20,720.25 = 9,425.22/x
  3. Step 3: Cross multiply
    15,016.74x = 20,720.25 × 9,425.22
  4. Step 4: Simplify right side
    15,016.74x = 195,292,914.71
  5. Step 5: Solve for x
    x = 195,292,914.71/15,016.74
  6. Step 6: Final answer
    x = 13,005.01

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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.