Home / 9,767.05-13,478.51-5,290.82

Finding the Fourth Proportional to 9,767.05, 13,478.51 and 5,290.82

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Solution

The fourth proportional to 9,767.05, 13,478.51 and 5,290.82 is: 7,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,767.05 : 13,478.51 = 5,290.82 : x
  2. Step 2: Convert to fraction form
    9,767.05/13,478.51 = 5,290.82/x
  3. Step 3: Cross multiply
    9,767.05x = 13,478.51 × 5,290.82
  4. Step 4: Simplify right side
    9,767.05x = 71,312,366.66
  5. Step 5: Solve for x
    x = 71,312,366.66/9,767.05
  6. Step 6: Final answer
    x = 7,301.32

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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.