Home / 13,331.67-19,995.48-8,386.22

Finding the Fourth Proportional to 13,331.67, 19,995.48 and 8,386.22

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Solution

The fourth proportional to 13,331.67, 19,995.48 and 8,386.22 is: 12,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.67 : 19,995.48 = 8,386.22 : x
  2. Step 2: Convert to fraction form
    13,331.67/19,995.48 = 8,386.22/x
  3. Step 3: Cross multiply
    13,331.67x = 19,995.48 × 8,386.22
  4. Step 4: Simplify right side
    13,331.67x = 167,686,394.31
  5. Step 5: Solve for x
    x = 167,686,394.31/13,331.67
  6. Step 6: Final answer
    x = 12,578.05

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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.