Home / 9,688.73-13,370.96-5,711.12

Finding the Fourth Proportional to 9,688.73, 13,370.96 and 5,711.12

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Solution

The fourth proportional to 9,688.73, 13,370.96 and 5,711.12 is: 7,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.73 : 13,370.96 = 5,711.12 : x
  2. Step 2: Convert to fraction form
    9,688.73/13,370.96 = 5,711.12/x
  3. Step 3: Cross multiply
    9,688.73x = 13,370.96 × 5,711.12
  4. Step 4: Simplify right side
    9,688.73x = 76,363,157.08
  5. Step 5: Solve for x
    x = 76,363,157.08/9,688.73
  6. Step 6: Final answer
    x = 7,881.65

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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.