Home / 7,712.47-10,639.29-4,523.68

Finding the Fourth Proportional to 7,712.47, 10,639.29 and 4,523.68

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Solution

The fourth proportional to 7,712.47, 10,639.29 and 4,523.68 is: 6,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.47 : 10,639.29 = 4,523.68 : x
  2. Step 2: Convert to fraction form
    7,712.47/10,639.29 = 4,523.68/x
  3. Step 3: Cross multiply
    7,712.47x = 10,639.29 × 4,523.68
  4. Step 4: Simplify right side
    7,712.47x = 48,128,743.39
  5. Step 5: Solve for x
    x = 48,128,743.39/7,712.47
  6. Step 6: Final answer
    x = 6,240.38

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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.