Home / 12,655.08-18,980.58-4,334.76

Finding the Fourth Proportional to 12,655.08, 18,980.58 and 4,334.76

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Solution

The fourth proportional to 12,655.08, 18,980.58 and 4,334.76 is: 6,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,655.08 : 18,980.58 = 4,334.76 : x
  2. Step 2: Convert to fraction form
    12,655.08/18,980.58 = 4,334.76/x
  3. Step 3: Cross multiply
    12,655.08x = 18,980.58 × 4,334.76
  4. Step 4: Simplify right side
    12,655.08x = 82,276,258.96
  5. Step 5: Solve for x
    x = 82,276,258.96/12,655.08
  6. Step 6: Final answer
    x = 6,501.44

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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.