Home / 7,864.68-10,853.71-4,508.05

Finding the Fourth Proportional to 7,864.68, 10,853.71 and 4,508.05

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Solution

The fourth proportional to 7,864.68, 10,853.71 and 4,508.05 is: 6,221.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.68 : 10,853.71 = 4,508.05 : x
  2. Step 2: Convert to fraction form
    7,864.68/10,853.71 = 4,508.05/x
  3. Step 3: Cross multiply
    7,864.68x = 10,853.71 × 4,508.05
  4. Step 4: Simplify right side
    7,864.68x = 48,929,044.83
  5. Step 5: Solve for x
    x = 48,929,044.83/7,864.68
  6. Step 6: Final answer
    x = 6,221.36

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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.