Home / 11,106.96-15,329.76-7,133.10

Finding the Fourth Proportional to 11,106.96, 15,329.76 and 7,133.10

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Solution

The fourth proportional to 11,106.96, 15,329.76 and 7,133.10 is: 9,845.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.96 : 15,329.76 = 7,133.10 : x
  2. Step 2: Convert to fraction form
    11,106.96/15,329.76 = 7,133.10/x
  3. Step 3: Cross multiply
    11,106.96x = 15,329.76 × 7,133.10
  4. Step 4: Simplify right side
    11,106.96x = 109,348,711.06
  5. Step 5: Solve for x
    x = 109,348,711.06/11,106.96
  6. Step 6: Final answer
    x = 9,845.06

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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.