Home / 14,157.35-19,537.37-7,784.21

Finding the Fourth Proportional to 14,157.35, 19,537.37 and 7,784.21

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Solution

The fourth proportional to 14,157.35, 19,537.37 and 7,784.21 is: 10,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.35 : 19,537.37 = 7,784.21 : x
  2. Step 2: Convert to fraction form
    14,157.35/19,537.37 = 7,784.21/x
  3. Step 3: Cross multiply
    14,157.35x = 19,537.37 × 7,784.21
  4. Step 4: Simplify right side
    14,157.35x = 152,082,990.93
  5. Step 5: Solve for x
    x = 152,082,990.93/14,157.35
  6. Step 6: Final answer
    x = 10,742.33

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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.