Home / 9,239.88-12,746.66-6,720.90

Finding the Fourth Proportional to 9,239.88, 12,746.66 and 6,720.90

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Solution

The fourth proportional to 9,239.88, 12,746.66 and 6,720.90 is: 9,271.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.88 : 12,746.66 = 6,720.90 : x
  2. Step 2: Convert to fraction form
    9,239.88/12,746.66 = 6,720.90/x
  3. Step 3: Cross multiply
    9,239.88x = 12,746.66 × 6,720.90
  4. Step 4: Simplify right side
    9,239.88x = 85,669,027.19
  5. Step 5: Solve for x
    x = 85,669,027.19/9,239.88
  6. Step 6: Final answer
    x = 9,271.66

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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.