Home / 14,402.51-21,603.54-8,781.83

Finding the Fourth Proportional to 14,402.51, 21,603.54 and 8,781.83

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Solution

The fourth proportional to 14,402.51, 21,603.54 and 8,781.83 is: 13,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,402.51 : 21,603.54 = 8,781.83 : x
  2. Step 2: Convert to fraction form
    14,402.51/21,603.54 = 8,781.83/x
  3. Step 3: Cross multiply
    14,402.51x = 21,603.54 × 8,781.83
  4. Step 4: Simplify right side
    14,402.51x = 189,718,729.60
  5. Step 5: Solve for x
    x = 189,718,729.60/14,402.51
  6. Step 6: Final answer
    x = 13,172.62

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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.