Home / 11,216.30-15,474.76-7,240.04

Finding the Fourth Proportional to 11,216.30, 15,474.76 and 7,240.04

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Solution

The fourth proportional to 11,216.30, 15,474.76 and 7,240.04 is: 9,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.30 : 15,474.76 = 7,240.04 : x
  2. Step 2: Convert to fraction form
    11,216.30/15,474.76 = 7,240.04/x
  3. Step 3: Cross multiply
    11,216.30x = 15,474.76 × 7,240.04
  4. Step 4: Simplify right side
    11,216.30x = 112,037,881.39
  5. Step 5: Solve for x
    x = 112,037,881.39/11,216.30
  6. Step 6: Final answer
    x = 9,988.84

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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.