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Finding the Fourth Proportional to 13,394.58, 18,491.88 and 9,152.01

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Solution

The fourth proportional to 13,394.58, 18,491.88 and 9,152.01 is: 12,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.58 : 18,491.88 = 9,152.01 : x
  2. Step 2: Convert to fraction form
    13,394.58/18,491.88 = 9,152.01/x
  3. Step 3: Cross multiply
    13,394.58x = 18,491.88 × 9,152.01
  4. Step 4: Simplify right side
    13,394.58x = 169,237,870.68
  5. Step 5: Solve for x
    x = 169,237,870.68/13,394.58
  6. Step 6: Final answer
    x = 12,634.80

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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.