Home / 13,228.94-18,246.30-8,756.52

Finding the Fourth Proportional to 13,228.94, 18,246.30 and 8,756.52

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Solution

The fourth proportional to 13,228.94, 18,246.30 and 8,756.52 is: 12,077.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.94 : 18,246.30 = 8,756.52 : x
  2. Step 2: Convert to fraction form
    13,228.94/18,246.30 = 8,756.52/x
  3. Step 3: Cross multiply
    13,228.94x = 18,246.30 × 8,756.52
  4. Step 4: Simplify right side
    13,228.94x = 159,774,090.88
  5. Step 5: Solve for x
    x = 159,774,090.88/13,228.94
  6. Step 6: Final answer
    x = 12,077.62

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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.