Home / 14,651.89-20,219.56-7,937.49

Finding the Fourth Proportional to 14,651.89, 20,219.56 and 7,937.49

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Solution

The fourth proportional to 14,651.89, 20,219.56 and 7,937.49 is: 10,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.89 : 20,219.56 = 7,937.49 : x
  2. Step 2: Convert to fraction form
    14,651.89/20,219.56 = 7,937.49/x
  3. Step 3: Cross multiply
    14,651.89x = 20,219.56 × 7,937.49
  4. Step 4: Simplify right side
    14,651.89x = 160,492,611.28
  5. Step 5: Solve for x
    x = 160,492,611.28/14,651.89
  6. Step 6: Final answer
    x = 10,953.72

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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.