Home / 9,338.51-12,886.08-5,561.15

Finding the Fourth Proportional to 9,338.51, 12,886.08 and 5,561.15

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Solution

The fourth proportional to 9,338.51, 12,886.08 and 5,561.15 is: 7,673.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,338.51 : 12,886.08 = 5,561.15 : x
  2. Step 2: Convert to fraction form
    9,338.51/12,886.08 = 5,561.15/x
  3. Step 3: Cross multiply
    9,338.51x = 12,886.08 × 5,561.15
  4. Step 4: Simplify right side
    9,338.51x = 71,661,359.36
  5. Step 5: Solve for x
    x = 71,661,359.36/9,338.51
  6. Step 6: Final answer
    x = 7,673.75

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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.