Home / 11,749.70-16,215.18-6,445.01

Finding the Fourth Proportional to 11,749.70, 16,215.18 and 6,445.01

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Solution

The fourth proportional to 11,749.70, 16,215.18 and 6,445.01 is: 8,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,749.70 : 16,215.18 = 6,445.01 : x
  2. Step 2: Convert to fraction form
    11,749.70/16,215.18 = 6,445.01/x
  3. Step 3: Cross multiply
    11,749.70x = 16,215.18 × 6,445.01
  4. Step 4: Simplify right side
    11,749.70x = 104,506,997.25
  5. Step 5: Solve for x
    x = 104,506,997.25/11,749.70
  6. Step 6: Final answer
    x = 8,894.44

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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.