Home / 12,427.72-18,637.64-4,106.20

Finding the Fourth Proportional to 12,427.72, 18,637.64 and 4,106.20

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Solution

The fourth proportional to 12,427.72, 18,637.64 and 4,106.20 is: 6,158.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.72 : 18,637.64 = 4,106.20 : x
  2. Step 2: Convert to fraction form
    12,427.72/18,637.64 = 4,106.20/x
  3. Step 3: Cross multiply
    12,427.72x = 18,637.64 × 4,106.20
  4. Step 4: Simplify right side
    12,427.72x = 76,529,877.37
  5. Step 5: Solve for x
    x = 76,529,877.37/12,427.72
  6. Step 6: Final answer
    x = 6,158.00

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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.