Home / 12,038.85-18,054.23-8,364.69

Finding the Fourth Proportional to 12,038.85, 18,054.23 and 8,364.69

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Solution

The fourth proportional to 12,038.85, 18,054.23 and 8,364.69 is: 12,544.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.85 : 18,054.23 = 8,364.69 : x
  2. Step 2: Convert to fraction form
    12,038.85/18,054.23 = 8,364.69/x
  3. Step 3: Cross multiply
    12,038.85x = 18,054.23 × 8,364.69
  4. Step 4: Simplify right side
    12,038.85x = 151,017,995.32
  5. Step 5: Solve for x
    x = 151,017,995.32/12,038.85
  6. Step 6: Final answer
    x = 12,544.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.