Home / 12,289.02-16,949.70-9,631.14

Finding the Fourth Proportional to 12,289.02, 16,949.70 and 9,631.14

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Solution

The fourth proportional to 12,289.02, 16,949.70 and 9,631.14 is: 13,283.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289.02 : 16,949.70 = 9,631.14 : x
  2. Step 2: Convert to fraction form
    12,289.02/16,949.70 = 9,631.14/x
  3. Step 3: Cross multiply
    12,289.02x = 16,949.70 × 9,631.14
  4. Step 4: Simplify right side
    12,289.02x = 163,244,933.66
  5. Step 5: Solve for x
    x = 163,244,933.66/12,289.02
  6. Step 6: Final answer
    x = 13,283.80

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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.