Home / 7,518.16-11,255.64-5,660.56

Finding the Fourth Proportional to 7,518.16, 11,255.64 and 5,660.56

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Solution

The fourth proportional to 7,518.16, 11,255.64 and 5,660.56 is: 8,474.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.16 : 11,255.64 = 5,660.56 : x
  2. Step 2: Convert to fraction form
    7,518.16/11,255.64 = 5,660.56/x
  3. Step 3: Cross multiply
    7,518.16x = 11,255.64 × 5,660.56
  4. Step 4: Simplify right side
    7,518.16x = 63,713,225.56
  5. Step 5: Solve for x
    x = 63,713,225.56/7,518.16
  6. Step 6: Final answer
    x = 8,474.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.