Home / 18,667.48-28,002.24-7,572.52

Finding the Fourth Proportional to 18,667.48, 28,002.24 and 7,572.52

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Solution

The fourth proportional to 18,667.48, 28,002.24 and 7,572.52 is: 11,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.48 : 28,002.24 = 7,572.52 : x
  2. Step 2: Convert to fraction form
    18,667.48/28,002.24 = 7,572.52/x
  3. Step 3: Cross multiply
    18,667.48x = 28,002.24 × 7,572.52
  4. Step 4: Simplify right side
    18,667.48x = 212,047,522.44
  5. Step 5: Solve for x
    x = 212,047,522.44/18,667.48
  6. Step 6: Final answer
    x = 11,359.19

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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.