Home / 11,239.71-15,510.47-6,460.44

Finding the Fourth Proportional to 11,239.71, 15,510.47 and 6,460.44

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Solution

The fourth proportional to 11,239.71, 15,510.47 and 6,460.44 is: 8,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.71 : 15,510.47 = 6,460.44 : x
  2. Step 2: Convert to fraction form
    11,239.71/15,510.47 = 6,460.44/x
  3. Step 3: Cross multiply
    11,239.71x = 15,510.47 × 6,460.44
  4. Step 4: Simplify right side
    11,239.71x = 100,204,428.50
  5. Step 5: Solve for x
    x = 100,204,428.50/11,239.71
  6. Step 6: Final answer
    x = 8,915.21

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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.