Home / 7,988.87-11,022.26-4,631.51

Finding the Fourth Proportional to 7,988.87, 11,022.26 and 4,631.51

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Solution

The fourth proportional to 7,988.87, 11,022.26 and 4,631.51 is: 6,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.87 : 11,022.26 = 4,631.51 : x
  2. Step 2: Convert to fraction form
    7,988.87/11,022.26 = 4,631.51/x
  3. Step 3: Cross multiply
    7,988.87x = 11,022.26 × 4,631.51
  4. Step 4: Simplify right side
    7,988.87x = 51,049,629.14
  5. Step 5: Solve for x
    x = 51,049,629.14/7,988.87
  6. Step 6: Final answer
    x = 6,390.10

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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.