Home / 18,703.20-28,054.56-5,376.51

Finding the Fourth Proportional to 18,703.20, 28,054.56 and 5,376.51

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Solution

The fourth proportional to 18,703.20, 28,054.56 and 5,376.51 is: 8,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.20 : 28,054.56 = 5,376.51 : x
  2. Step 2: Convert to fraction form
    18,703.20/28,054.56 = 5,376.51/x
  3. Step 3: Cross multiply
    18,703.20x = 28,054.56 × 5,376.51
  4. Step 4: Simplify right side
    18,703.20x = 150,835,622.39
  5. Step 5: Solve for x
    x = 150,835,622.39/18,703.20
  6. Step 6: Final answer
    x = 8,064.70

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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.