Home / 14,388.53-19,852.27-8,421.66

Finding the Fourth Proportional to 14,388.53, 19,852.27 and 8,421.66

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Solution

The fourth proportional to 14,388.53, 19,852.27 and 8,421.66 is: 11,619.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.53 : 19,852.27 = 8,421.66 : x
  2. Step 2: Convert to fraction form
    14,388.53/19,852.27 = 8,421.66/x
  3. Step 3: Cross multiply
    14,388.53x = 19,852.27 × 8,421.66
  4. Step 4: Simplify right side
    14,388.53x = 167,189,047.11
  5. Step 5: Solve for x
    x = 167,189,047.11/14,388.53
  6. Step 6: Final answer
    x = 11,619.61

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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.