Home / 14,492.18-19,999.96-8,118.40

Finding the Fourth Proportional to 14,492.18, 19,999.96 and 8,118.40

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Solution

The fourth proportional to 14,492.18, 19,999.96 and 8,118.40 is: 11,203.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,492.18 : 19,999.96 = 8,118.40 : x
  2. Step 2: Convert to fraction form
    14,492.18/19,999.96 = 8,118.40/x
  3. Step 3: Cross multiply
    14,492.18x = 19,999.96 × 8,118.40
  4. Step 4: Simplify right side
    14,492.18x = 162,367,675.26
  5. Step 5: Solve for x
    x = 162,367,675.26/14,492.18
  6. Step 6: Final answer
    x = 11,203.81

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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.