Home / 12,427.60-18,641.40-4,635.40

Finding the Fourth Proportional to 12,427.60, 18,641.40 and 4,635.40

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Solution

The fourth proportional to 12,427.60, 18,641.40 and 4,635.40 is: 6,953.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,427.60 : 18,641.40 = 4,635.40 : x
  2. Step 2: Convert to fraction form
    12,427.60/18,641.40 = 4,635.40/x
  3. Step 3: Cross multiply
    12,427.60x = 18,641.40 × 4,635.40
  4. Step 4: Simplify right side
    12,427.60x = 86,410,345.56
  5. Step 5: Solve for x
    x = 86,410,345.56/12,427.60
  6. Step 6: Final answer
    x = 6,953.10

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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.