Home / 14,142.08-19,515.73-7,854.46

Finding the Fourth Proportional to 14,142.08, 19,515.73 and 7,854.46

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Solution

The fourth proportional to 14,142.08, 19,515.73 and 7,854.46 is: 10,838.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.08 : 19,515.73 = 7,854.46 : x
  2. Step 2: Convert to fraction form
    14,142.08/19,515.73 = 7,854.46/x
  3. Step 3: Cross multiply
    14,142.08x = 19,515.73 × 7,854.46
  4. Step 4: Simplify right side
    14,142.08x = 153,285,520.66
  5. Step 5: Solve for x
    x = 153,285,520.66/14,142.08
  6. Step 6: Final answer
    x = 10,838.97

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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.