Home / 15,346.03-21,179.40-8,631.94

Finding the Fourth Proportional to 15,346.03, 21,179.40 and 8,631.94

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Solution

The fourth proportional to 15,346.03, 21,179.40 and 8,631.94 is: 11,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,346.03 : 21,179.40 = 8,631.94 : x
  2. Step 2: Convert to fraction form
    15,346.03/21,179.40 = 8,631.94/x
  3. Step 3: Cross multiply
    15,346.03x = 21,179.40 × 8,631.94
  4. Step 4: Simplify right side
    15,346.03x = 182,819,310.04
  5. Step 5: Solve for x
    x = 182,819,310.04/15,346.03
  6. Step 6: Final answer
    x = 11,913.13

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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.