Home / 8,531.06-11,778.66-5,345.67

Finding the Fourth Proportional to 8,531.06, 11,778.66 and 5,345.67

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Solution

The fourth proportional to 8,531.06, 11,778.66 and 5,345.67 is: 7,380.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.06 : 11,778.66 = 5,345.67 : x
  2. Step 2: Convert to fraction form
    8,531.06/11,778.66 = 5,345.67/x
  3. Step 3: Cross multiply
    8,531.06x = 11,778.66 × 5,345.67
  4. Step 4: Simplify right side
    8,531.06x = 62,964,829.40
  5. Step 5: Solve for x
    x = 62,964,829.40/8,531.06
  6. Step 6: Final answer
    x = 7,380.66

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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.