Home / 8,706.36-13,006.56-5,561.13

Finding the Fourth Proportional to 8,706.36, 13,006.56 and 5,561.13

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Solution

The fourth proportional to 8,706.36, 13,006.56 and 5,561.13 is: 8,307.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.36 : 13,006.56 = 5,561.13 : x
  2. Step 2: Convert to fraction form
    8,706.36/13,006.56 = 5,561.13/x
  3. Step 3: Cross multiply
    8,706.36x = 13,006.56 × 5,561.13
  4. Step 4: Simplify right side
    8,706.36x = 72,331,171.01
  5. Step 5: Solve for x
    x = 72,331,171.01/8,706.36
  6. Step 6: Final answer
    x = 8,307.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.