Home / 11,510.40-15,885.75-6,474.83

Finding the Fourth Proportional to 11,510.40, 15,885.75 and 6,474.83

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Solution

The fourth proportional to 11,510.40, 15,885.75 and 6,474.83 is: 8,936.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.40 : 15,885.75 = 6,474.83 : x
  2. Step 2: Convert to fraction form
    11,510.40/15,885.75 = 6,474.83/x
  3. Step 3: Cross multiply
    11,510.40x = 15,885.75 × 6,474.83
  4. Step 4: Simplify right side
    11,510.40x = 102,857,530.67
  5. Step 5: Solve for x
    x = 102,857,530.67/11,510.40
  6. Step 6: Final answer
    x = 8,936.05

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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.