Home / 15,649.76-21,596.66-9,363.62

Finding the Fourth Proportional to 15,649.76, 21,596.66 and 9,363.62

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Solution

The fourth proportional to 15,649.76, 21,596.66 and 9,363.62 is: 12,921.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,649.76 : 21,596.66 = 9,363.62 : x
  2. Step 2: Convert to fraction form
    15,649.76/21,596.66 = 9,363.62/x
  3. Step 3: Cross multiply
    15,649.76x = 21,596.66 × 9,363.62
  4. Step 4: Simplify right side
    15,649.76x = 202,222,917.51
  5. Step 5: Solve for x
    x = 202,222,917.51/15,649.76
  6. Step 6: Final answer
    x = 12,921.79

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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.