Home / 12,224.89-16,870.75-6,919.59

Finding the Fourth Proportional to 12,224.89, 16,870.75 and 6,919.59

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Solution

The fourth proportional to 12,224.89, 16,870.75 and 6,919.59 is: 9,549.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.89 : 16,870.75 = 6,919.59 : x
  2. Step 2: Convert to fraction form
    12,224.89/16,870.75 = 6,919.59/x
  3. Step 3: Cross multiply
    12,224.89x = 16,870.75 × 6,919.59
  4. Step 4: Simplify right side
    12,224.89x = 116,738,710.84
  5. Step 5: Solve for x
    x = 116,738,710.84/12,224.89
  6. Step 6: Final answer
    x = 9,549.26

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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.