Home / 7,240.47-10,860.71-4,659.81

Finding the Fourth Proportional to 7,240.47, 10,860.71 and 4,659.81

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Solution

The fourth proportional to 7,240.47, 10,860.71 and 4,659.81 is: 6,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.47 : 10,860.71 = 4,659.81 : x
  2. Step 2: Convert to fraction form
    7,240.47/10,860.71 = 4,659.81/x
  3. Step 3: Cross multiply
    7,240.47x = 10,860.71 × 4,659.81
  4. Step 4: Simplify right side
    7,240.47x = 50,608,821.77
  5. Step 5: Solve for x
    x = 50,608,821.77/7,240.47
  6. Step 6: Final answer
    x = 6,989.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.