Home / 13,368.06-18,448.56-8,652.42

Finding the Fourth Proportional to 13,368.06, 18,448.56 and 8,652.42

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Solution

The fourth proportional to 13,368.06, 18,448.56 and 8,652.42 is: 11,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,368.06 : 18,448.56 = 8,652.42 : x
  2. Step 2: Convert to fraction form
    13,368.06/18,448.56 = 8,652.42/x
  3. Step 3: Cross multiply
    13,368.06x = 18,448.56 × 8,652.42
  4. Step 4: Simplify right side
    13,368.06x = 159,624,689.52
  5. Step 5: Solve for x
    x = 159,624,689.52/13,368.06
  6. Step 6: Final answer
    x = 11,940.75

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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.