Home / 8,969.69-13,436.07-5,260.70

Finding the Fourth Proportional to 8,969.69, 13,436.07 and 5,260.70

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Solution

The fourth proportional to 8,969.69, 13,436.07 and 5,260.70 is: 7,880.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.69 : 13,436.07 = 5,260.70 : x
  2. Step 2: Convert to fraction form
    8,969.69/13,436.07 = 5,260.70/x
  3. Step 3: Cross multiply
    8,969.69x = 13,436.07 × 5,260.70
  4. Step 4: Simplify right side
    8,969.69x = 70,683,133.45
  5. Step 5: Solve for x
    x = 70,683,133.45/8,969.69
  6. Step 6: Final answer
    x = 7,880.22

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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.