Home / 9,860.05-13,606.88-5,383.80

Finding the Fourth Proportional to 9,860.05, 13,606.88 and 5,383.80

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Solution

The fourth proportional to 9,860.05, 13,606.88 and 5,383.80 is: 7,429.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.05 : 13,606.88 = 5,383.80 : x
  2. Step 2: Convert to fraction form
    9,860.05/13,606.88 = 5,383.80/x
  3. Step 3: Cross multiply
    9,860.05x = 13,606.88 × 5,383.80
  4. Step 4: Simplify right side
    9,860.05x = 73,256,652.51
  5. Step 5: Solve for x
    x = 73,256,652.51/9,860.05
  6. Step 6: Final answer
    x = 7,429.65

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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.