Home / 11,214.16-15,465.48-7,022.80

Finding the Fourth Proportional to 11,214.16, 15,465.48 and 7,022.80

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Solution

The fourth proportional to 11,214.16, 15,465.48 and 7,022.80 is: 9,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.16 : 15,465.48 = 7,022.80 : x
  2. Step 2: Convert to fraction form
    11,214.16/15,465.48 = 7,022.80/x
  3. Step 3: Cross multiply
    11,214.16x = 15,465.48 × 7,022.80
  4. Step 4: Simplify right side
    11,214.16x = 108,610,972.94
  5. Step 5: Solve for x
    x = 108,610,972.94/11,214.16
  6. Step 6: Final answer
    x = 9,685.16

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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.