Home / 15,332.90-21,161.36-9,363.31

Finding the Fourth Proportional to 15,332.90, 21,161.36 and 9,363.31

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Solution

The fourth proportional to 15,332.90, 21,161.36 and 9,363.31 is: 12,922.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332.90 : 21,161.36 = 9,363.31 : x
  2. Step 2: Convert to fraction form
    15,332.90/21,161.36 = 9,363.31/x
  3. Step 3: Cross multiply
    15,332.90x = 21,161.36 × 9,363.31
  4. Step 4: Simplify right side
    15,332.90x = 198,140,273.98
  5. Step 5: Solve for x
    x = 198,140,273.98/15,332.90
  6. Step 6: Final answer
    x = 12,922.56

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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.