Home / 18,561.34-27,856.59-10,247.10

Finding the Fourth Proportional to 18,561.34, 27,856.59 and 10,247.10

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Solution

The fourth proportional to 18,561.34, 27,856.59 and 10,247.10 is: 15,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.34 : 27,856.59 = 10,247.10 : x
  2. Step 2: Convert to fraction form
    18,561.34/27,856.59 = 10,247.10/x
  3. Step 3: Cross multiply
    18,561.34x = 27,856.59 × 10,247.10
  4. Step 4: Simplify right side
    18,561.34x = 285,449,263.39
  5. Step 5: Solve for x
    x = 285,449,263.39/18,561.34
  6. Step 6: Final answer
    x = 15,378.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.