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Finding the Fourth Proportional to 14,774.63, 20,392.41 and 9,739.74

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Solution

The fourth proportional to 14,774.63, 20,392.41 and 9,739.74 is: 13,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,774.63 : 20,392.41 = 9,739.74 : x
  2. Step 2: Convert to fraction form
    14,774.63/20,392.41 = 9,739.74/x
  3. Step 3: Cross multiply
    14,774.63x = 20,392.41 × 9,739.74
  4. Step 4: Simplify right side
    14,774.63x = 198,616,829.58
  5. Step 5: Solve for x
    x = 198,616,829.58/14,774.63
  6. Step 6: Final answer
    x = 13,443.10

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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.