Home / 7,818.29-11,727.47-1,974.90

Finding the Fourth Proportional to 7,818.29, 11,727.47 and 1,974.90

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Solution

The fourth proportional to 7,818.29, 11,727.47 and 1,974.90 is: 2,962.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.29 : 11,727.47 = 1,974.90 : x
  2. Step 2: Convert to fraction form
    7,818.29/11,727.47 = 1,974.90/x
  3. Step 3: Cross multiply
    7,818.29x = 11,727.47 × 1,974.90
  4. Step 4: Simplify right side
    7,818.29x = 23,160,552.34
  5. Step 5: Solve for x
    x = 23,160,552.34/7,818.29
  6. Step 6: Final answer
    x = 2,962.36

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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.