Home / 14,252.72-19,668.31-7,878.93

Finding the Fourth Proportional to 14,252.72, 19,668.31 and 7,878.93

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Solution

The fourth proportional to 14,252.72, 19,668.31 and 7,878.93 is: 10,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,252.72 : 19,668.31 = 7,878.93 : x
  2. Step 2: Convert to fraction form
    14,252.72/19,668.31 = 7,878.93/x
  3. Step 3: Cross multiply
    14,252.72x = 19,668.31 × 7,878.93
  4. Step 4: Simplify right side
    14,252.72x = 154,965,237.71
  5. Step 5: Solve for x
    x = 154,965,237.71/14,252.72
  6. Step 6: Final answer
    x = 10,872.68

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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.