Home / 14,381.54-21,557.70-10,911.50

Finding the Fourth Proportional to 14,381.54, 21,557.70 and 10,911.50

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Solution

The fourth proportional to 14,381.54, 21,557.70 and 10,911.50 is: 16,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.54 : 21,557.70 = 10,911.50 : x
  2. Step 2: Convert to fraction form
    14,381.54/21,557.70 = 10,911.50/x
  3. Step 3: Cross multiply
    14,381.54x = 21,557.70 × 10,911.50
  4. Step 4: Simplify right side
    14,381.54x = 235,226,843.55
  5. Step 5: Solve for x
    x = 235,226,843.55/14,381.54
  6. Step 6: Final answer
    x = 16,356.17

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1.5x scale

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.