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Finding the Fourth Proportional to 14,492.85, 19,990.84 and 9,953.34

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Solution

The fourth proportional to 14,492.85, 19,990.84 and 9,953.34 is: 13,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,492.85 : 19,990.84 = 9,953.34 : x
  2. Step 2: Convert to fraction form
    14,492.85/19,990.84 = 9,953.34/x
  3. Step 3: Cross multiply
    14,492.85x = 19,990.84 × 9,953.34
  4. Step 4: Simplify right side
    14,492.85x = 198,975,627.41
  5. Step 5: Solve for x
    x = 198,975,627.41/14,492.85
  6. Step 6: Final answer
    x = 13,729.23

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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.