Home / 15,933.08-21,985.98-8,858.36

Finding the Fourth Proportional to 15,933.08, 21,985.98 and 8,858.36

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Solution

The fourth proportional to 15,933.08, 21,985.98 and 8,858.36 is: 12,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.08 : 21,985.98 = 8,858.36 : x
  2. Step 2: Convert to fraction form
    15,933.08/21,985.98 = 8,858.36/x
  3. Step 3: Cross multiply
    15,933.08x = 21,985.98 × 8,858.36
  4. Step 4: Simplify right side
    15,933.08x = 194,759,725.79
  5. Step 5: Solve for x
    x = 194,759,725.79/15,933.08
  6. Step 6: Final answer
    x = 12,223.61

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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.