Home / 18,904.89-28,349.12-5,754.18

Finding the Fourth Proportional to 18,904.89, 28,349.12 and 5,754.18

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Solution

The fourth proportional to 18,904.89, 28,349.12 and 5,754.18 is: 8,628.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,904.89 : 28,349.12 = 5,754.18 : x
  2. Step 2: Convert to fraction form
    18,904.89/28,349.12 = 5,754.18/x
  3. Step 3: Cross multiply
    18,904.89x = 28,349.12 × 5,754.18
  4. Step 4: Simplify right side
    18,904.89x = 163,126,060.02
  5. Step 5: Solve for x
    x = 163,126,060.02/18,904.89
  6. Step 6: Final answer
    x = 8,628.77

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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.