Home / 18,269.64-25,212.15-9,886.14

Finding the Fourth Proportional to 18,269.64, 25,212.15 and 9,886.14

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Solution

The fourth proportional to 18,269.64, 25,212.15 and 9,886.14 is: 13,642.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.64 : 25,212.15 = 9,886.14 : x
  2. Step 2: Convert to fraction form
    18,269.64/25,212.15 = 9,886.14/x
  3. Step 3: Cross multiply
    18,269.64x = 25,212.15 × 9,886.14
  4. Step 4: Simplify right side
    18,269.64x = 249,250,844.60
  5. Step 5: Solve for x
    x = 249,250,844.60/18,269.64
  6. Step 6: Final answer
    x = 13,642.90

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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.