Home / 18,410.19-25,404.85-10,856.17

Finding the Fourth Proportional to 18,410.19, 25,404.85 and 10,856.17

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Solution

The fourth proportional to 18,410.19, 25,404.85 and 10,856.17 is: 14,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,410.19 : 25,404.85 = 10,856.17 : x
  2. Step 2: Convert to fraction form
    18,410.19/25,404.85 = 10,856.17/x
  3. Step 3: Cross multiply
    18,410.19x = 25,404.85 × 10,856.17
  4. Step 4: Simplify right side
    18,410.19x = 275,799,242.32
  5. Step 5: Solve for x
    x = 275,799,242.32/18,410.19
  6. Step 6: Final answer
    x = 14,980.79

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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.