Home / 19,188.12-28,782.24-5,337.12

Finding the Fourth Proportional to 19,188.12, 28,782.24 and 5,337.12

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Solution

The fourth proportional to 19,188.12, 28,782.24 and 5,337.12 is: 8,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.12 : 28,782.24 = 5,337.12 : x
  2. Step 2: Convert to fraction form
    19,188.12/28,782.24 = 5,337.12/x
  3. Step 3: Cross multiply
    19,188.12x = 28,782.24 × 5,337.12
  4. Step 4: Simplify right side
    19,188.12x = 153,614,268.75
  5. Step 5: Solve for x
    x = 153,614,268.75/19,188.12
  6. Step 6: Final answer
    x = 8,005.70

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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.