Home / 19,143.72-28,715.58-5,997.12

Finding the Fourth Proportional to 19,143.72, 28,715.58 and 5,997.12

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Solution

The fourth proportional to 19,143.72, 28,715.58 and 5,997.12 is: 8,995.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.72 : 28,715.58 = 5,997.12 : x
  2. Step 2: Convert to fraction form
    19,143.72/28,715.58 = 5,997.12/x
  3. Step 3: Cross multiply
    19,143.72x = 28,715.58 × 5,997.12
  4. Step 4: Simplify right side
    19,143.72x = 172,210,779.13
  5. Step 5: Solve for x
    x = 172,210,779.13/19,143.72
  6. Step 6: Final answer
    x = 8,995.68

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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.