Home / 11,173.34-15,421.12-6,460.36

Finding the Fourth Proportional to 11,173.34, 15,421.12 and 6,460.36

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Solution

The fourth proportional to 11,173.34, 15,421.12 and 6,460.36 is: 8,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.34 : 15,421.12 = 6,460.36 : x
  2. Step 2: Convert to fraction form
    11,173.34/15,421.12 = 6,460.36/x
  3. Step 3: Cross multiply
    11,173.34x = 15,421.12 × 6,460.36
  4. Step 4: Simplify right side
    11,173.34x = 99,625,932.10
  5. Step 5: Solve for x
    x = 99,625,932.10/11,173.34
  6. Step 6: Final answer
    x = 8,916.39

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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.