Home / 15,677.01-21,634.90-8,603.69

Finding the Fourth Proportional to 15,677.01, 21,634.90 and 8,603.69

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Solution

The fourth proportional to 15,677.01, 21,634.90 and 8,603.69 is: 11,873.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.01 : 21,634.90 = 8,603.69 : x
  2. Step 2: Convert to fraction form
    15,677.01/21,634.90 = 8,603.69/x
  3. Step 3: Cross multiply
    15,677.01x = 21,634.90 × 8,603.69
  4. Step 4: Simplify right side
    15,677.01x = 186,139,972.78
  5. Step 5: Solve for x
    x = 186,139,972.78/15,677.01
  6. Step 6: Final answer
    x = 11,873.44

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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.