Home / 12,670.16-18,997.34-4,877.15

Finding the Fourth Proportional to 12,670.16, 18,997.34 and 4,877.15

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Solution

The fourth proportional to 12,670.16, 18,997.34 and 4,877.15 is: 7,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.16 : 18,997.34 = 4,877.15 : x
  2. Step 2: Convert to fraction form
    12,670.16/18,997.34 = 4,877.15/x
  3. Step 3: Cross multiply
    12,670.16x = 18,997.34 × 4,877.15
  4. Step 4: Simplify right side
    12,670.16x = 92,652,757.41
  5. Step 5: Solve for x
    x = 92,652,757.41/12,670.16
  6. Step 6: Final answer
    x = 7,312.68

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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.