Home / 9,639.70-13,305.01-6,276.66

Finding the Fourth Proportional to 9,639.70, 13,305.01 and 6,276.66

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Solution

The fourth proportional to 9,639.70, 13,305.01 and 6,276.66 is: 8,663.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,639.70 : 13,305.01 = 6,276.66 : x
  2. Step 2: Convert to fraction form
    9,639.70/13,305.01 = 6,276.66/x
  3. Step 3: Cross multiply
    9,639.70x = 13,305.01 × 6,276.66
  4. Step 4: Simplify right side
    9,639.70x = 83,511,024.07
  5. Step 5: Solve for x
    x = 83,511,024.07/9,639.70
  6. Step 6: Final answer
    x = 8,663.24

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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.