Home / 8,886.39-13,328.64-2,646.42

Finding the Fourth Proportional to 8,886.39, 13,328.64 and 2,646.42

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Solution

The fourth proportional to 8,886.39, 13,328.64 and 2,646.42 is: 3,969.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.39 : 13,328.64 = 2,646.42 : x
  2. Step 2: Convert to fraction form
    8,886.39/13,328.64 = 2,646.42/x
  3. Step 3: Cross multiply
    8,886.39x = 13,328.64 × 2,646.42
  4. Step 4: Simplify right side
    8,886.39x = 35,273,179.47
  5. Step 5: Solve for x
    x = 35,273,179.47/8,886.39
  6. Step 6: Final answer
    x = 3,969.35

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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.