Home / 12,670.02-18,997.74-7,479.54

Finding the Fourth Proportional to 12,670.02, 18,997.74 and 7,479.54

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Solution

The fourth proportional to 12,670.02, 18,997.74 and 7,479.54 is: 11,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.02 : 18,997.74 = 7,479.54 : x
  2. Step 2: Convert to fraction form
    12,670.02/18,997.74 = 7,479.54/x
  3. Step 3: Cross multiply
    12,670.02x = 18,997.74 × 7,479.54
  4. Step 4: Simplify right side
    12,670.02x = 142,094,356.24
  5. Step 5: Solve for x
    x = 142,094,356.24/12,670.02
  6. Step 6: Final answer
    x = 11,215.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.