Home / 13,395.65-18,488.12-8,091.23

Finding the Fourth Proportional to 13,395.65, 18,488.12 and 8,091.23

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Solution

The fourth proportional to 13,395.65, 18,488.12 and 8,091.23 is: 11,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.65 : 18,488.12 = 8,091.23 : x
  2. Step 2: Convert to fraction form
    13,395.65/18,488.12 = 8,091.23/x
  3. Step 3: Cross multiply
    13,395.65x = 18,488.12 × 8,091.23
  4. Step 4: Simplify right side
    13,395.65x = 149,591,498.29
  5. Step 5: Solve for x
    x = 149,591,498.29/13,395.65
  6. Step 6: Final answer
    x = 11,167.17

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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.