Home / 9,913.07-13,680.14-5,664.69

Finding the Fourth Proportional to 9,913.07, 13,680.14 and 5,664.69

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Solution

The fourth proportional to 9,913.07, 13,680.14 and 5,664.69 is: 7,817.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.07 : 13,680.14 = 5,664.69 : x
  2. Step 2: Convert to fraction form
    9,913.07/13,680.14 = 5,664.69/x
  3. Step 3: Cross multiply
    9,913.07x = 13,680.14 × 5,664.69
  4. Step 4: Simplify right side
    9,913.07x = 77,493,752.26
  5. Step 5: Solve for x
    x = 77,493,752.26/9,913.07
  6. Step 6: Final answer
    x = 7,817.33

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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.