Home / 14,355.24-19,807.84-7,981.66

Finding the Fourth Proportional to 14,355.24, 19,807.84 and 7,981.66

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Solution

The fourth proportional to 14,355.24, 19,807.84 and 7,981.66 is: 11,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.24 : 19,807.84 = 7,981.66 : x
  2. Step 2: Convert to fraction form
    14,355.24/19,807.84 = 7,981.66/x
  3. Step 3: Cross multiply
    14,355.24x = 19,807.84 × 7,981.66
  4. Step 4: Simplify right side
    14,355.24x = 158,099,305.27
  5. Step 5: Solve for x
    x = 158,099,305.27/14,355.24
  6. Step 6: Final answer
    x = 11,013.35

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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.