Home / 15,367.70-21,207.66-9,398.10

Finding the Fourth Proportional to 15,367.70, 21,207.66 and 9,398.10

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Solution

The fourth proportional to 15,367.70, 21,207.66 and 9,398.10 is: 12,969.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.70 : 21,207.66 = 9,398.10 : x
  2. Step 2: Convert to fraction form
    15,367.70/21,207.66 = 9,398.10/x
  3. Step 3: Cross multiply
    15,367.70x = 21,207.66 × 9,398.10
  4. Step 4: Simplify right side
    15,367.70x = 199,311,709.45
  5. Step 5: Solve for x
    x = 199,311,709.45/15,367.70
  6. Step 6: Final answer
    x = 12,969.52

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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.