Home / 8,854.52-12,219.28-5,317.79

Finding the Fourth Proportional to 8,854.52, 12,219.28 and 5,317.79

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Solution

The fourth proportional to 8,854.52, 12,219.28 and 5,317.79 is: 7,338.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.52 : 12,219.28 = 5,317.79 : x
  2. Step 2: Convert to fraction form
    8,854.52/12,219.28 = 5,317.79/x
  3. Step 3: Cross multiply
    8,854.52x = 12,219.28 × 5,317.79
  4. Step 4: Simplify right side
    8,854.52x = 64,979,582.24
  5. Step 5: Solve for x
    x = 64,979,582.24/8,854.52
  6. Step 6: Final answer
    x = 7,338.58

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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.