Home / 18,579.59-25,643.26-10,621.76

Finding the Fourth Proportional to 18,579.59, 25,643.26 and 10,621.76

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Solution

The fourth proportional to 18,579.59, 25,643.26 and 10,621.76 is: 14,659.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.59 : 25,643.26 = 10,621.76 : x
  2. Step 2: Convert to fraction form
    18,579.59/25,643.26 = 10,621.76/x
  3. Step 3: Cross multiply
    18,579.59x = 25,643.26 × 10,621.76
  4. Step 4: Simplify right side
    18,579.59x = 272,376,480.65
  5. Step 5: Solve for x
    x = 272,376,480.65/18,579.59
  6. Step 6: Final answer
    x = 14,659.98

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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.