Home / 11,490.93-15,857.78-7,296.75

Finding the Fourth Proportional to 11,490.93, 15,857.78 and 7,296.75

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Solution

The fourth proportional to 11,490.93, 15,857.78 and 7,296.75 is: 10,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.93 : 15,857.78 = 7,296.75 : x
  2. Step 2: Convert to fraction form
    11,490.93/15,857.78 = 7,296.75/x
  3. Step 3: Cross multiply
    11,490.93x = 15,857.78 × 7,296.75
  4. Step 4: Simplify right side
    11,490.93x = 115,710,219.73
  5. Step 5: Solve for x
    x = 115,710,219.73/11,490.93
  6. Step 6: Final answer
    x = 10,069.70

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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.