Home / 14,215.05-19,616.85-7,841.87

Finding the Fourth Proportional to 14,215.05, 19,616.85 and 7,841.87

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Solution

The fourth proportional to 14,215.05, 19,616.85 and 7,841.87 is: 10,821.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.05 : 19,616.85 = 7,841.87 : x
  2. Step 2: Convert to fraction form
    14,215.05/19,616.85 = 7,841.87/x
  3. Step 3: Cross multiply
    14,215.05x = 19,616.85 × 7,841.87
  4. Step 4: Simplify right side
    14,215.05x = 153,832,787.51
  5. Step 5: Solve for x
    x = 153,832,787.51/14,215.05
  6. Step 6: Final answer
    x = 10,821.83

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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.