Home / 10,027.68-15,038.64-3,102.72

Finding the Fourth Proportional to 10,027.68, 15,038.64 and 3,102.72

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Solution

The fourth proportional to 10,027.68, 15,038.64 and 3,102.72 is: 4,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,027.68 : 15,038.64 = 3,102.72 : x
  2. Step 2: Convert to fraction form
    10,027.68/15,038.64 = 3,102.72/x
  3. Step 3: Cross multiply
    10,027.68x = 15,038.64 × 3,102.72
  4. Step 4: Simplify right side
    10,027.68x = 46,660,689.10
  5. Step 5: Solve for x
    x = 46,660,689.10/10,027.68
  6. Step 6: Final answer
    x = 4,653.19

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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.