Home / 10,913.40-15,060.09-6,671.57

Finding the Fourth Proportional to 10,913.40, 15,060.09 and 6,671.57

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Solution

The fourth proportional to 10,913.40, 15,060.09 and 6,671.57 is: 9,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.40 : 15,060.09 = 6,671.57 : x
  2. Step 2: Convert to fraction form
    10,913.40/15,060.09 = 6,671.57/x
  3. Step 3: Cross multiply
    10,913.40x = 15,060.09 × 6,671.57
  4. Step 4: Simplify right side
    10,913.40x = 100,474,369.34
  5. Step 5: Solve for x
    x = 100,474,369.34/10,913.40
  6. Step 6: Final answer
    x = 9,206.51

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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.