Home / 9,814.36-13,555.98-7,121.26

Finding the Fourth Proportional to 9,814.36, 13,555.98 and 7,121.26

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Solution

The fourth proportional to 9,814.36, 13,555.98 and 7,121.26 is: 9,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,814.36 : 13,555.98 = 7,121.26 : x
  2. Step 2: Convert to fraction form
    9,814.36/13,555.98 = 7,121.26/x
  3. Step 3: Cross multiply
    9,814.36x = 13,555.98 × 7,121.26
  4. Step 4: Simplify right side
    9,814.36x = 96,535,658.13
  5. Step 5: Solve for x
    x = 96,535,658.13/9,814.36
  6. Step 6: Final answer
    x = 9,836.16

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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.