Home / 8,440.19-11,647.49-4,663.34

Finding the Fourth Proportional to 8,440.19, 11,647.49 and 4,663.34

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Solution

The fourth proportional to 8,440.19, 11,647.49 and 4,663.34 is: 6,435.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,440.19 : 11,647.49 = 4,663.34 : x
  2. Step 2: Convert to fraction form
    8,440.19/11,647.49 = 4,663.34/x
  3. Step 3: Cross multiply
    8,440.19x = 11,647.49 × 4,663.34
  4. Step 4: Simplify right side
    8,440.19x = 54,316,259.89
  5. Step 5: Solve for x
    x = 54,316,259.89/8,440.19
  6. Step 6: Final answer
    x = 6,435.43

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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.