Home / 18,285.48-27,465.12-10,904.40

Finding the Fourth Proportional to 18,285.48, 27,465.12 and 10,904.40

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Solution

The fourth proportional to 18,285.48, 27,465.12 and 10,904.40 is: 16,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,285.48 : 27,465.12 = 10,904.40 : x
  2. Step 2: Convert to fraction form
    18,285.48/27,465.12 = 10,904.40/x
  3. Step 3: Cross multiply
    18,285.48x = 27,465.12 × 10,904.40
  4. Step 4: Simplify right side
    18,285.48x = 299,490,654.53
  5. Step 5: Solve for x
    x = 299,490,654.53/18,285.48
  6. Step 6: Final answer
    x = 16,378.61

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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.