Home / 15,195.30-20,967-10,151.46

Finding the Fourth Proportional to 15,195.30, 20,967 and 10,151.46

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Solution

The fourth proportional to 15,195.30, 20,967 and 10,151.46 is: 14,007.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195.30 : 20,967 = 10,151.46 : x
  2. Step 2: Convert to fraction form
    15,195.30/20,967 = 10,151.46/x
  3. Step 3: Cross multiply
    15,195.30x = 20,967 × 10,151.46
  4. Step 4: Simplify right side
    15,195.30x = 212,845,661.82
  5. Step 5: Solve for x
    x = 212,845,661.82/15,195.30
  6. Step 6: Final answer
    x = 14,007.34

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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.