Home / 9,070.88-12,513.56-6,419.75

Finding the Fourth Proportional to 9,070.88, 12,513.56 and 6,419.75

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Solution

The fourth proportional to 9,070.88, 12,513.56 and 6,419.75 is: 8,856.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,070.88 : 12,513.56 = 6,419.75 : x
  2. Step 2: Convert to fraction form
    9,070.88/12,513.56 = 6,419.75/x
  3. Step 3: Cross multiply
    9,070.88x = 12,513.56 × 6,419.75
  4. Step 4: Simplify right side
    9,070.88x = 80,333,832.14
  5. Step 5: Solve for x
    x = 80,333,832.14/9,070.88
  6. Step 6: Final answer
    x = 8,856.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.