Home / 12,840.73-19,259.13-4,074.50

Finding the Fourth Proportional to 12,840.73, 19,259.13 and 4,074.50

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Solution

The fourth proportional to 12,840.73, 19,259.13 and 4,074.50 is: 6,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840.73 : 19,259.13 = 4,074.50 : x
  2. Step 2: Convert to fraction form
    12,840.73/19,259.13 = 4,074.50/x
  3. Step 3: Cross multiply
    12,840.73x = 19,259.13 × 4,074.50
  4. Step 4: Simplify right side
    12,840.73x = 78,471,325.19
  5. Step 5: Solve for x
    x = 78,471,325.19/12,840.73
  6. Step 6: Final answer
    x = 6,111.13

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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.