Home / 11,417.09-15,750.87-6,940.13

Finding the Fourth Proportional to 11,417.09, 15,750.87 and 6,940.13

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Solution

The fourth proportional to 11,417.09, 15,750.87 and 6,940.13 is: 9,574.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.09 : 15,750.87 = 6,940.13 : x
  2. Step 2: Convert to fraction form
    11,417.09/15,750.87 = 6,940.13/x
  3. Step 3: Cross multiply
    11,417.09x = 15,750.87 × 6,940.13
  4. Step 4: Simplify right side
    11,417.09x = 109,313,006.66
  5. Step 5: Solve for x
    x = 109,313,006.66/11,417.09
  6. Step 6: Final answer
    x = 9,574.51

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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.