Home / 11,097.51-15,309.41-6,618.57

Finding the Fourth Proportional to 11,097.51, 15,309.41 and 6,618.57

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Solution

The fourth proportional to 11,097.51, 15,309.41 and 6,618.57 is: 9,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,097.51 : 15,309.41 = 6,618.57 : x
  2. Step 2: Convert to fraction form
    11,097.51/15,309.41 = 6,618.57/x
  3. Step 3: Cross multiply
    11,097.51x = 15,309.41 × 6,618.57
  4. Step 4: Simplify right side
    11,097.51x = 101,326,368.65
  5. Step 5: Solve for x
    x = 101,326,368.65/11,097.51
  6. Step 6: Final answer
    x = 9,130.55

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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.