Home / 8,771.39-12,117.75-5,753.67

Finding the Fourth Proportional to 8,771.39, 12,117.75 and 5,753.67

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Solution

The fourth proportional to 8,771.39, 12,117.75 and 5,753.67 is: 7,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.39 : 12,117.75 = 5,753.67 : x
  2. Step 2: Convert to fraction form
    8,771.39/12,117.75 = 5,753.67/x
  3. Step 3: Cross multiply
    8,771.39x = 12,117.75 × 5,753.67
  4. Step 4: Simplify right side
    8,771.39x = 69,721,534.64
  5. Step 5: Solve for x
    x = 69,721,534.64/8,771.39
  6. Step 6: Final answer
    x = 7,948.74

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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.