Home / 7,117.47-10,674.60-2,118.81

Finding the Fourth Proportional to 7,117.47, 10,674.60 and 2,118.81

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Solution

The fourth proportional to 7,117.47, 10,674.60 and 2,118.81 is: 3,177.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.47 : 10,674.60 = 2,118.81 : x
  2. Step 2: Convert to fraction form
    7,117.47/10,674.60 = 2,118.81/x
  3. Step 3: Cross multiply
    7,117.47x = 10,674.60 × 2,118.81
  4. Step 4: Simplify right side
    7,117.47x = 22,617,449.23
  5. Step 5: Solve for x
    x = 22,617,449.23/7,117.47
  6. Step 6: Final answer
    x = 3,177.74

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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.