Home / 14,168.58-21,242.48-7,145.12

Finding the Fourth Proportional to 14,168.58, 21,242.48 and 7,145.12

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Solution

The fourth proportional to 14,168.58, 21,242.48 and 7,145.12 is: 10,712.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.58 : 21,242.48 = 7,145.12 : x
  2. Step 2: Convert to fraction form
    14,168.58/21,242.48 = 7,145.12/x
  3. Step 3: Cross multiply
    14,168.58x = 21,242.48 × 7,145.12
  4. Step 4: Simplify right side
    14,168.58x = 151,779,926.76
  5. Step 5: Solve for x
    x = 151,779,926.76/14,168.58
  6. Step 6: Final answer
    x = 10,712.43

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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.