Home / 14,412.67-21,475.73-12,840.60

Finding the Fourth Proportional to 14,412.67, 21,475.73 and 12,840.60

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Solution

The fourth proportional to 14,412.67, 21,475.73 and 12,840.60 is: 19,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,412.67 : 21,475.73 = 12,840.60 : x
  2. Step 2: Convert to fraction form
    14,412.67/21,475.73 = 12,840.60/x
  3. Step 3: Cross multiply
    14,412.67x = 21,475.73 × 12,840.60
  4. Step 4: Simplify right side
    14,412.67x = 275,761,258.64
  5. Step 5: Solve for x
    x = 275,761,258.64/14,412.67
  6. Step 6: Final answer
    x = 19,133.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.