Home / 10,698.09-14,742.56-7,708.28

Finding the Fourth Proportional to 10,698.09, 14,742.56 and 7,708.28

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Solution

The fourth proportional to 10,698.09, 14,742.56 and 7,708.28 is: 10,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,698.09 : 14,742.56 = 7,708.28 : x
  2. Step 2: Convert to fraction form
    10,698.09/14,742.56 = 7,708.28/x
  3. Step 3: Cross multiply
    10,698.09x = 14,742.56 × 7,708.28
  4. Step 4: Simplify right side
    10,698.09x = 113,639,668.14
  5. Step 5: Solve for x
    x = 113,639,668.14/10,698.09
  6. Step 6: Final answer
    x = 10,622.43

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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.