Home / 9,971.81-13,767.66-7,699.04

Finding the Fourth Proportional to 9,971.81, 13,767.66 and 7,699.04

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Solution

The fourth proportional to 9,971.81, 13,767.66 and 7,699.04 is: 10,629.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,971.81 : 13,767.66 = 7,699.04 : x
  2. Step 2: Convert to fraction form
    9,971.81/13,767.66 = 7,699.04/x
  3. Step 3: Cross multiply
    9,971.81x = 13,767.66 × 7,699.04
  4. Step 4: Simplify right side
    9,971.81x = 105,997,765.05
  5. Step 5: Solve for x
    x = 105,997,765.05/9,971.81
  6. Step 6: Final answer
    x = 10,629.74

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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.