Home / 15,749.08-21,733.10-8,675

Finding the Fourth Proportional to 15,749.08, 21,733.10 and 8,675

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Solution

The fourth proportional to 15,749.08, 21,733.10 and 8,675 is: 11,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.08 : 21,733.10 = 8,675 : x
  2. Step 2: Convert to fraction form
    15,749.08/21,733.10 = 8,675/x
  3. Step 3: Cross multiply
    15,749.08x = 21,733.10 × 8,675
  4. Step 4: Simplify right side
    15,749.08x = 188,534,642.50
  5. Step 5: Solve for x
    x = 188,534,642.50/15,749.08
  6. Step 6: Final answer
    x = 11,971.15

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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.