Home / 12,492.87-18,748.58-5,919.08

Finding the Fourth Proportional to 12,492.87, 18,748.58 and 5,919.08

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Solution

The fourth proportional to 12,492.87, 18,748.58 and 5,919.08 is: 8,883.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492.87 : 18,748.58 = 5,919.08 : x
  2. Step 2: Convert to fraction form
    12,492.87/18,748.58 = 5,919.08/x
  3. Step 3: Cross multiply
    12,492.87x = 18,748.58 × 5,919.08
  4. Step 4: Simplify right side
    12,492.87x = 110,974,254.86
  5. Step 5: Solve for x
    x = 110,974,254.86/12,492.87
  6. Step 6: Final answer
    x = 8,883.01

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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.