Home / 14,055.36-21,090.40-9,123.84

Finding the Fourth Proportional to 14,055.36, 21,090.40 and 9,123.84

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Solution

The fourth proportional to 14,055.36, 21,090.40 and 9,123.84 is: 13,690.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,055.36 : 21,090.40 = 9,123.84 : x
  2. Step 2: Convert to fraction form
    14,055.36/21,090.40 = 9,123.84/x
  3. Step 3: Cross multiply
    14,055.36x = 21,090.40 × 9,123.84
  4. Step 4: Simplify right side
    14,055.36x = 192,425,435.14
  5. Step 5: Solve for x
    x = 192,425,435.14/14,055.36
  6. Step 6: Final answer
    x = 13,690.54

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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.