Home / 13,257.51-19,869.84-6,680.10

Finding the Fourth Proportional to 13,257.51, 19,869.84 and 6,680.10

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Solution

The fourth proportional to 13,257.51, 19,869.84 and 6,680.10 is: 10,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.51 : 19,869.84 = 6,680.10 : x
  2. Step 2: Convert to fraction form
    13,257.51/19,869.84 = 6,680.10/x
  3. Step 3: Cross multiply
    13,257.51x = 19,869.84 × 6,680.10
  4. Step 4: Simplify right side
    13,257.51x = 132,732,518.18
  5. Step 5: Solve for x
    x = 132,732,518.18/13,257.51
  6. Step 6: Final answer
    x = 10,011.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.