Home / 13,330.64-19,985.15-5,545.28

Finding the Fourth Proportional to 13,330.64, 19,985.15 and 5,545.28

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Solution

The fourth proportional to 13,330.64, 19,985.15 and 5,545.28 is: 8,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.64 : 19,985.15 = 5,545.28 : x
  2. Step 2: Convert to fraction form
    13,330.64/19,985.15 = 5,545.28/x
  3. Step 3: Cross multiply
    13,330.64x = 19,985.15 × 5,545.28
  4. Step 4: Simplify right side
    13,330.64x = 110,823,252.59
  5. Step 5: Solve for x
    x = 110,823,252.59/13,330.64
  6. Step 6: Final answer
    x = 8,313.42

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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.