Home / 15,677.26-21,634.55-8,603.80

Finding the Fourth Proportional to 15,677.26, 21,634.55 and 8,603.80

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Solution

The fourth proportional to 15,677.26, 21,634.55 and 8,603.80 is: 11,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677.26 : 21,634.55 = 8,603.80 : x
  2. Step 2: Convert to fraction form
    15,677.26/21,634.55 = 8,603.80/x
  3. Step 3: Cross multiply
    15,677.26x = 21,634.55 × 8,603.80
  4. Step 4: Simplify right side
    15,677.26x = 186,139,341.29
  5. Step 5: Solve for x
    x = 186,139,341.29/15,677.26
  6. Step 6: Final answer
    x = 11,873.21

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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.