Home / 15,231.64-21,022.04-9,265.18

Finding the Fourth Proportional to 15,231.64, 21,022.04 and 9,265.18

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Solution

The fourth proportional to 15,231.64, 21,022.04 and 9,265.18 is: 12,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,231.64 : 21,022.04 = 9,265.18 : x
  2. Step 2: Convert to fraction form
    15,231.64/21,022.04 = 9,265.18/x
  3. Step 3: Cross multiply
    15,231.64x = 21,022.04 × 9,265.18
  4. Step 4: Simplify right side
    15,231.64x = 194,772,984.57
  5. Step 5: Solve for x
    x = 194,772,984.57/15,231.64
  6. Step 6: Final answer
    x = 12,787.39

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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.