Home / 14,014.08-21,018.48-5,247.12

Finding the Fourth Proportional to 14,014.08, 21,018.48 and 5,247.12

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Solution

The fourth proportional to 14,014.08, 21,018.48 and 5,247.12 is: 7,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,014.08 : 21,018.48 = 5,247.12 : x
  2. Step 2: Convert to fraction form
    14,014.08/21,018.48 = 5,247.12/x
  3. Step 3: Cross multiply
    14,014.08x = 21,018.48 × 5,247.12
  4. Step 4: Simplify right side
    14,014.08x = 110,286,486.78
  5. Step 5: Solve for x
    x = 110,286,486.78/14,014.08
  6. Step 6: Final answer
    x = 7,869.69

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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.