Home / 14,145.07-19,536.60-9,421.15

Finding the Fourth Proportional to 14,145.07, 19,536.60 and 9,421.15

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Solution

The fourth proportional to 14,145.07, 19,536.60 and 9,421.15 is: 13,012.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.07 : 19,536.60 = 9,421.15 : x
  2. Step 2: Convert to fraction form
    14,145.07/19,536.60 = 9,421.15/x
  3. Step 3: Cross multiply
    14,145.07x = 19,536.60 × 9,421.15
  4. Step 4: Simplify right side
    14,145.07x = 184,057,239.09
  5. Step 5: Solve for x
    x = 184,057,239.09/14,145.07
  6. Step 6: Final answer
    x = 13,012.11

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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.