Home / 7,742.51-10,689.09-5,097.61

Finding the Fourth Proportional to 7,742.51, 10,689.09 and 5,097.61

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Solution

The fourth proportional to 7,742.51, 10,689.09 and 5,097.61 is: 7,037.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.51 : 10,689.09 = 5,097.61 : x
  2. Step 2: Convert to fraction form
    7,742.51/10,689.09 = 5,097.61/x
  3. Step 3: Cross multiply
    7,742.51x = 10,689.09 × 5,097.61
  4. Step 4: Simplify right side
    7,742.51x = 54,488,812.07
  5. Step 5: Solve for x
    x = 54,488,812.07/7,742.51
  6. Step 6: Final answer
    x = 7,037.62

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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.