Home / 9,317.09-12,859.41-5,340.87

Finding the Fourth Proportional to 9,317.09, 12,859.41 and 5,340.87

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Solution

The fourth proportional to 9,317.09, 12,859.41 and 5,340.87 is: 7,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.09 : 12,859.41 = 5,340.87 : x
  2. Step 2: Convert to fraction form
    9,317.09/12,859.41 = 5,340.87/x
  3. Step 3: Cross multiply
    9,317.09x = 12,859.41 × 5,340.87
  4. Step 4: Simplify right side
    9,317.09x = 68,680,437.09
  5. Step 5: Solve for x
    x = 68,680,437.09/9,317.09
  6. Step 6: Final answer
    x = 7,371.45

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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.