Home / 15,749.60-21,734.58-8,676.04

Finding the Fourth Proportional to 15,749.60, 21,734.58 and 8,676.04

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Solution

The fourth proportional to 15,749.60, 21,734.58 and 8,676.04 is: 11,973.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,749.60 : 21,734.58 = 8,676.04 : x
  2. Step 2: Convert to fraction form
    15,749.60/21,734.58 = 8,676.04/x
  3. Step 3: Cross multiply
    15,749.60x = 21,734.58 × 8,676.04
  4. Step 4: Simplify right side
    15,749.60x = 188,570,085.46
  5. Step 5: Solve for x
    x = 188,570,085.46/15,749.60
  6. Step 6: Final answer
    x = 11,973.01

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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.