Home / 9,688.29-13,370.28-5,709.57

Finding the Fourth Proportional to 9,688.29, 13,370.28 and 5,709.57

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Solution

The fourth proportional to 9,688.29, 13,370.28 and 5,709.57 is: 7,879.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.29 : 13,370.28 = 5,709.57 : x
  2. Step 2: Convert to fraction form
    9,688.29/13,370.28 = 5,709.57/x
  3. Step 3: Cross multiply
    9,688.29x = 13,370.28 × 5,709.57
  4. Step 4: Simplify right side
    9,688.29x = 76,338,454.18
  5. Step 5: Solve for x
    x = 76,338,454.18/9,688.29
  6. Step 6: Final answer
    x = 7,879.46

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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.