Home / 7,731.47-10,678.14-5,223.94

Finding the Fourth Proportional to 7,731.47, 10,678.14 and 5,223.94

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Solution

The fourth proportional to 7,731.47, 10,678.14 and 5,223.94 is: 7,214.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.47 : 10,678.14 = 5,223.94 : x
  2. Step 2: Convert to fraction form
    7,731.47/10,678.14 = 5,223.94/x
  3. Step 3: Cross multiply
    7,731.47x = 10,678.14 × 5,223.94
  4. Step 4: Simplify right side
    7,731.47x = 55,781,962.67
  5. Step 5: Solve for x
    x = 55,781,962.67/7,731.47
  6. Step 6: Final answer
    x = 7,214.92

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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.