Home / 18,621.88-25,700.34-11,068.14

Finding the Fourth Proportional to 18,621.88, 25,700.34 and 11,068.14

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Solution

The fourth proportional to 18,621.88, 25,700.34 and 11,068.14 is: 15,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.88 : 25,700.34 = 11,068.14 : x
  2. Step 2: Convert to fraction form
    18,621.88/25,700.34 = 11,068.14/x
  3. Step 3: Cross multiply
    18,621.88x = 25,700.34 × 11,068.14
  4. Step 4: Simplify right side
    18,621.88x = 284,454,788.82
  5. Step 5: Solve for x
    x = 284,454,788.82/18,621.88
  6. Step 6: Final answer
    x = 15,275.30

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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.