Home / 7,731.28-11,497.40-7,485.24

Finding the Fourth Proportional to 7,731.28, 11,497.40 and 7,485.24

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Solution

The fourth proportional to 7,731.28, 11,497.40 and 7,485.24 is: 11,131.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.28 : 11,497.40 = 7,485.24 : x
  2. Step 2: Convert to fraction form
    7,731.28/11,497.40 = 7,485.24/x
  3. Step 3: Cross multiply
    7,731.28x = 11,497.40 × 7,485.24
  4. Step 4: Simplify right side
    7,731.28x = 86,060,798.38
  5. Step 5: Solve for x
    x = 86,060,798.38/7,731.28
  6. Step 6: Final answer
    x = 11,131.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.