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Finding the Fourth Proportional to 7,809.34, 10,776.63 and 4,663.66

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Solution

The fourth proportional to 7,809.34, 10,776.63 and 4,663.66 is: 6,435.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.34 : 10,776.63 = 4,663.66 : x
  2. Step 2: Convert to fraction form
    7,809.34/10,776.63 = 4,663.66/x
  3. Step 3: Cross multiply
    7,809.34x = 10,776.63 × 4,663.66
  4. Step 4: Simplify right side
    7,809.34x = 50,258,538.27
  5. Step 5: Solve for x
    x = 50,258,538.27/7,809.34
  6. Step 6: Final answer
    x = 6,435.70

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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.