Home / 11,566.54-15,960.75-7,089.40

Finding the Fourth Proportional to 11,566.54, 15,960.75 and 7,089.40

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Solution

The fourth proportional to 11,566.54, 15,960.75 and 7,089.40 is: 9,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,566.54 : 15,960.75 = 7,089.40 : x
  2. Step 2: Convert to fraction form
    11,566.54/15,960.75 = 7,089.40/x
  3. Step 3: Cross multiply
    11,566.54x = 15,960.75 × 7,089.40
  4. Step 4: Simplify right side
    11,566.54x = 113,152,141.05
  5. Step 5: Solve for x
    x = 113,152,141.05/11,566.54
  6. Step 6: Final answer
    x = 9,782.71

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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.