Home / 7,490.40-11,232.36-5,760.24

Finding the Fourth Proportional to 7,490.40, 11,232.36 and 5,760.24

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Solution

The fourth proportional to 7,490.40, 11,232.36 and 5,760.24 is: 8,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,490.40 : 11,232.36 = 5,760.24 : x
  2. Step 2: Convert to fraction form
    7,490.40/11,232.36 = 5,760.24/x
  3. Step 3: Cross multiply
    7,490.40x = 11,232.36 × 5,760.24
  4. Step 4: Simplify right side
    7,490.40x = 64,701,089.37
  5. Step 5: Solve for x
    x = 64,701,089.37/7,490.40
  6. Step 6: Final answer
    x = 8,637.87

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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.