Home / 8,854.45-13,281.75-5,154.31

Finding the Fourth Proportional to 8,854.45, 13,281.75 and 5,154.31

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Solution

The fourth proportional to 8,854.45, 13,281.75 and 5,154.31 is: 7,731.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.45 : 13,281.75 = 5,154.31 : x
  2. Step 2: Convert to fraction form
    8,854.45/13,281.75 = 5,154.31/x
  3. Step 3: Cross multiply
    8,854.45x = 13,281.75 × 5,154.31
  4. Step 4: Simplify right side
    8,854.45x = 68,458,338.26
  5. Step 5: Solve for x
    x = 68,458,338.26/8,854.45
  6. Step 6: Final answer
    x = 7,731.52

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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.