Home / 11,172.64-15,417.10-6,458.44

Finding the Fourth Proportional to 11,172.64, 15,417.10 and 6,458.44

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Solution

The fourth proportional to 11,172.64, 15,417.10 and 6,458.44 is: 8,911.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.64 : 15,417.10 = 6,458.44 : x
  2. Step 2: Convert to fraction form
    11,172.64/15,417.10 = 6,458.44/x
  3. Step 3: Cross multiply
    11,172.64x = 15,417.10 × 6,458.44
  4. Step 4: Simplify right side
    11,172.64x = 99,570,415.32
  5. Step 5: Solve for x
    x = 99,570,415.32/11,172.64
  6. Step 6: Final answer
    x = 8,911.99

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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.