Home / 8,969.19-13,435.32-5,260.20

Finding the Fourth Proportional to 8,969.19, 13,435.32 and 5,260.20

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Solution

The fourth proportional to 8,969.19, 13,435.32 and 5,260.20 is: 7,879.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.19 : 13,435.32 = 5,260.20 : x
  2. Step 2: Convert to fraction form
    8,969.19/13,435.32 = 5,260.20/x
  3. Step 3: Cross multiply
    8,969.19x = 13,435.32 × 5,260.20
  4. Step 4: Simplify right side
    8,969.19x = 70,672,470.26
  5. Step 5: Solve for x
    x = 70,672,470.26/8,969.19
  6. Step 6: Final answer
    x = 7,879.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.