Home / 9,880.40-13,634.96-7,364.72

Finding the Fourth Proportional to 9,880.40, 13,634.96 and 7,364.72

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Solution

The fourth proportional to 9,880.40, 13,634.96 and 7,364.72 is: 10,163.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.40 : 13,634.96 = 7,364.72 : x
  2. Step 2: Convert to fraction form
    9,880.40/13,634.96 = 7,364.72/x
  3. Step 3: Cross multiply
    9,880.40x = 13,634.96 × 7,364.72
  4. Step 4: Simplify right side
    9,880.40x = 100,417,557.61
  5. Step 5: Solve for x
    x = 100,417,557.61/9,880.40
  6. Step 6: Final answer
    x = 10,163.31

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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.