Home / 12,719.08-17,552.58-7,130.44

Finding the Fourth Proportional to 12,719.08, 17,552.58 and 7,130.44

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Solution

The fourth proportional to 12,719.08, 17,552.58 and 7,130.44 is: 9,840.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.08 : 17,552.58 = 7,130.44 : x
  2. Step 2: Convert to fraction form
    12,719.08/17,552.58 = 7,130.44/x
  3. Step 3: Cross multiply
    12,719.08x = 17,552.58 × 7,130.44
  4. Step 4: Simplify right side
    12,719.08x = 125,157,618.54
  5. Step 5: Solve for x
    x = 125,157,618.54/12,719.08
  6. Step 6: Final answer
    x = 9,840.15

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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.