Home / 13,643.48-20,432.36-9,247.62

Finding the Fourth Proportional to 13,643.48, 20,432.36 and 9,247.62

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Solution

The fourth proportional to 13,643.48, 20,432.36 and 9,247.62 is: 13,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.48 : 20,432.36 = 9,247.62 : x
  2. Step 2: Convert to fraction form
    13,643.48/20,432.36 = 9,247.62/x
  3. Step 3: Cross multiply
    13,643.48x = 20,432.36 × 9,247.62
  4. Step 4: Simplify right side
    13,643.48x = 188,950,700.98
  5. Step 5: Solve for x
    x = 188,950,700.98/13,643.48
  6. Step 6: Final answer
    x = 13,849.16

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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.