Home / 13,746.06-18,955.68-12,228.84

Finding the Fourth Proportional to 13,746.06, 18,955.68 and 12,228.84

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Solution

The fourth proportional to 13,746.06, 18,955.68 and 12,228.84 is: 16,863.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.06 : 18,955.68 = 12,228.84 : x
  2. Step 2: Convert to fraction form
    13,746.06/18,955.68 = 12,228.84/x
  3. Step 3: Cross multiply
    13,746.06x = 18,955.68 × 12,228.84
  4. Step 4: Simplify right side
    13,746.06x = 231,805,977.81
  5. Step 5: Solve for x
    x = 231,805,977.81/13,746.06
  6. Step 6: Final answer
    x = 16,863.45

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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.