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Finding the Fourth Proportional to 12,798.99, 17,662.53 and 7,492.74

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Solution

The fourth proportional to 12,798.99, 17,662.53 and 7,492.74 is: 10,339.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.99 : 17,662.53 = 7,492.74 : x
  2. Step 2: Convert to fraction form
    12,798.99/17,662.53 = 7,492.74/x
  3. Step 3: Cross multiply
    12,798.99x = 17,662.53 × 7,492.74
  4. Step 4: Simplify right side
    12,798.99x = 132,340,745.03
  5. Step 5: Solve for x
    x = 132,340,745.03/12,798.99
  6. Step 6: Final answer
    x = 10,339.94

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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.