Home / 18,747.37-28,120.34-4,707.50

Finding the Fourth Proportional to 18,747.37, 28,120.34 and 4,707.50

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Solution

The fourth proportional to 18,747.37, 28,120.34 and 4,707.50 is: 7,061.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.37 : 28,120.34 = 4,707.50 : x
  2. Step 2: Convert to fraction form
    18,747.37/28,120.34 = 4,707.50/x
  3. Step 3: Cross multiply
    18,747.37x = 28,120.34 × 4,707.50
  4. Step 4: Simplify right side
    18,747.37x = 132,376,582.62
  5. Step 5: Solve for x
    x = 132,376,582.62/18,747.37
  6. Step 6: Final answer
    x = 7,061.08

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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.