Home / 11,322.02-15,620.10-8,345

Finding the Fourth Proportional to 11,322.02, 15,620.10 and 8,345

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Solution

The fourth proportional to 11,322.02, 15,620.10 and 8,345 is: 11,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.02 : 15,620.10 = 8,345 : x
  2. Step 2: Convert to fraction form
    11,322.02/15,620.10 = 8,345/x
  3. Step 3: Cross multiply
    11,322.02x = 15,620.10 × 8,345
  4. Step 4: Simplify right side
    11,322.02x = 130,349,734.50
  5. Step 5: Solve for x
    x = 130,349,734.50/11,322.02
  6. Step 6: Final answer
    x = 11,512.94

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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.