Home / 15,435.43-21,281.54-12,599.96

Finding the Fourth Proportional to 15,435.43, 21,281.54 and 12,599.96

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Solution

The fourth proportional to 15,435.43, 21,281.54 and 12,599.96 is: 17,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.43 : 21,281.54 = 12,599.96 : x
  2. Step 2: Convert to fraction form
    15,435.43/21,281.54 = 12,599.96/x
  3. Step 3: Cross multiply
    15,435.43x = 21,281.54 × 12,599.96
  4. Step 4: Simplify right side
    15,435.43x = 268,146,383.33
  5. Step 5: Solve for x
    x = 268,146,383.33/15,435.43
  6. Step 6: Final answer
    x = 17,372.14

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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.