Home / 18,707.66-28,061.36-4,667.62

Finding the Fourth Proportional to 18,707.66, 28,061.36 and 4,667.62

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Solution

The fourth proportional to 18,707.66, 28,061.36 and 4,667.62 is: 7,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.66 : 28,061.36 = 4,667.62 : x
  2. Step 2: Convert to fraction form
    18,707.66/28,061.36 = 4,667.62/x
  3. Step 3: Cross multiply
    18,707.66x = 28,061.36 × 4,667.62
  4. Step 4: Simplify right side
    18,707.66x = 130,979,765.16
  5. Step 5: Solve for x
    x = 130,979,765.16/18,707.66
  6. Step 6: Final answer
    x = 7,001.40

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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.