Home / 14,420.03-19,899.72-8,451.81

Finding the Fourth Proportional to 14,420.03, 19,899.72 and 8,451.81

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Solution

The fourth proportional to 14,420.03, 19,899.72 and 8,451.81 is: 11,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.03 : 19,899.72 = 8,451.81 : x
  2. Step 2: Convert to fraction form
    14,420.03/19,899.72 = 8,451.81/x
  3. Step 3: Cross multiply
    14,420.03x = 19,899.72 × 8,451.81
  4. Step 4: Simplify right side
    14,420.03x = 168,188,652.49
  5. Step 5: Solve for x
    x = 168,188,652.49/14,420.03
  6. Step 6: Final answer
    x = 11,663.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.