Home / 15,751.04-21,734.98-8,675.78

Finding the Fourth Proportional to 15,751.04, 21,734.98 and 8,675.78

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Solution

The fourth proportional to 15,751.04, 21,734.98 and 8,675.78 is: 11,971.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.04 : 21,734.98 = 8,675.78 : x
  2. Step 2: Convert to fraction form
    15,751.04/21,734.98 = 8,675.78/x
  3. Step 3: Cross multiply
    15,751.04x = 21,734.98 × 8,675.78
  4. Step 4: Simplify right side
    15,751.04x = 188,567,774.42
  5. Step 5: Solve for x
    x = 188,567,774.42/15,751.04
  6. Step 6: Final answer
    x = 11,971.77

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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.