Home / 11,089.50-15,303.50-7,110.60

Finding the Fourth Proportional to 11,089.50, 15,303.50 and 7,110.60

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Solution

The fourth proportional to 11,089.50, 15,303.50 and 7,110.60 is: 9,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.50 : 15,303.50 = 7,110.60 : x
  2. Step 2: Convert to fraction form
    11,089.50/15,303.50 = 7,110.60/x
  3. Step 3: Cross multiply
    11,089.50x = 15,303.50 × 7,110.60
  4. Step 4: Simplify right side
    11,089.50x = 108,817,067.10
  5. Step 5: Solve for x
    x = 108,817,067.10/11,089.50
  6. Step 6: Final answer
    x = 9,812.62

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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.