Home / 11,127.36-15,329.81-7,764.24

Finding the Fourth Proportional to 11,127.36, 15,329.81 and 7,764.24

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Solution

The fourth proportional to 11,127.36, 15,329.81 and 7,764.24 is: 10,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.36 : 15,329.81 = 7,764.24 : x
  2. Step 2: Convert to fraction form
    11,127.36/15,329.81 = 7,764.24/x
  3. Step 3: Cross multiply
    11,127.36x = 15,329.81 × 7,764.24
  4. Step 4: Simplify right side
    11,127.36x = 119,024,285.17
  5. Step 5: Solve for x
    x = 119,024,285.17/11,127.36
  6. Step 6: Final answer
    x = 10,696.54

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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.