Home / 13,246.95-18,288.82-8,774.54

Finding the Fourth Proportional to 13,246.95, 18,288.82 and 8,774.54

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Solution

The fourth proportional to 13,246.95, 18,288.82 and 8,774.54 is: 12,114.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.95 : 18,288.82 = 8,774.54 : x
  2. Step 2: Convert to fraction form
    13,246.95/18,288.82 = 8,774.54/x
  3. Step 3: Cross multiply
    13,246.95x = 18,288.82 × 8,774.54
  4. Step 4: Simplify right side
    13,246.95x = 160,475,970.75
  5. Step 5: Solve for x
    x = 160,475,970.75/13,246.95
  6. Step 6: Final answer
    x = 12,114.18

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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.