Home / 18,278.88-25,224.66-10,320.63

Finding the Fourth Proportional to 18,278.88, 25,224.66 and 10,320.63

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Solution

The fourth proportional to 18,278.88, 25,224.66 and 10,320.63 is: 14,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278.88 : 25,224.66 = 10,320.63 : x
  2. Step 2: Convert to fraction form
    18,278.88/25,224.66 = 10,320.63/x
  3. Step 3: Cross multiply
    18,278.88x = 25,224.66 × 10,320.63
  4. Step 4: Simplify right side
    18,278.88x = 260,334,382.74
  5. Step 5: Solve for x
    x = 260,334,382.74/18,278.88
  6. Step 6: Final answer
    x = 14,242.36

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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.