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Finding the Fourth Proportional to 11,089.99, 15,298.88 and 7,506.20

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Solution

The fourth proportional to 11,089.99, 15,298.88 and 7,506.20 is: 10,354.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.99 : 15,298.88 = 7,506.20 : x
  2. Step 2: Convert to fraction form
    11,089.99/15,298.88 = 7,506.20/x
  3. Step 3: Cross multiply
    11,089.99x = 15,298.88 × 7,506.20
  4. Step 4: Simplify right side
    11,089.99x = 114,836,453.06
  5. Step 5: Solve for x
    x = 114,836,453.06/11,089.99
  6. Step 6: Final answer
    x = 10,354.96

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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.