Home / 18,449.13-25,459.77-10,065.63

Finding the Fourth Proportional to 18,449.13, 25,459.77 and 10,065.63

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Solution

The fourth proportional to 18,449.13, 25,459.77 and 10,065.63 is: 13,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.13 : 25,459.77 = 10,065.63 : x
  2. Step 2: Convert to fraction form
    18,449.13/25,459.77 = 10,065.63/x
  3. Step 3: Cross multiply
    18,449.13x = 25,459.77 × 10,065.63
  4. Step 4: Simplify right side
    18,449.13x = 256,268,472.24
  5. Step 5: Solve for x
    x = 256,268,472.24/18,449.13
  6. Step 6: Final answer
    x = 13,890.55

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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.