Home / 7,770.47-11,639.21-6,283.31

Finding the Fourth Proportional to 7,770.47, 11,639.21 and 6,283.31

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Solution

The fourth proportional to 7,770.47, 11,639.21 and 6,283.31 is: 9,411.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.47 : 11,639.21 = 6,283.31 : x
  2. Step 2: Convert to fraction form
    7,770.47/11,639.21 = 6,283.31/x
  3. Step 3: Cross multiply
    7,770.47x = 11,639.21 × 6,283.31
  4. Step 4: Simplify right side
    7,770.47x = 73,132,674.97
  5. Step 5: Solve for x
    x = 73,132,674.97/7,770.47
  6. Step 6: Final answer
    x = 9,411.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.