Home / 11,510.88-15,885.81-6,475.58

Finding the Fourth Proportional to 11,510.88, 15,885.81 and 6,475.58

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Solution

The fourth proportional to 11,510.88, 15,885.81 and 6,475.58 is: 8,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.88 : 15,885.81 = 6,475.58 : x
  2. Step 2: Convert to fraction form
    11,510.88/15,885.81 = 6,475.58/x
  3. Step 3: Cross multiply
    11,510.88x = 15,885.81 × 6,475.58
  4. Step 4: Simplify right side
    11,510.88x = 102,869,833.52
  5. Step 5: Solve for x
    x = 102,869,833.52/11,510.88
  6. Step 6: Final answer
    x = 8,936.75

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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.