Home / 9,688.09-13,369.44-5,709.25

Finding the Fourth Proportional to 9,688.09, 13,369.44 and 5,709.25

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Solution

The fourth proportional to 9,688.09, 13,369.44 and 5,709.25 is: 7,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,688.09 : 13,369.44 = 5,709.25 : x
  2. Step 2: Convert to fraction form
    9,688.09/13,369.44 = 5,709.25/x
  3. Step 3: Cross multiply
    9,688.09x = 13,369.44 × 5,709.25
  4. Step 4: Simplify right side
    9,688.09x = 76,329,475.32
  5. Step 5: Solve for x
    x = 76,329,475.32/9,688.09
  6. Step 6: Final answer
    x = 7,878.69

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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.