Home / 12,628.63-18,909.05-7,066.14

Finding the Fourth Proportional to 12,628.63, 18,909.05 and 7,066.14

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Solution

The fourth proportional to 12,628.63, 18,909.05 and 7,066.14 is: 10,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.63 : 18,909.05 = 7,066.14 : x
  2. Step 2: Convert to fraction form
    12,628.63/18,909.05 = 7,066.14/x
  3. Step 3: Cross multiply
    12,628.63x = 18,909.05 × 7,066.14
  4. Step 4: Simplify right side
    12,628.63x = 133,613,888.33
  5. Step 5: Solve for x
    x = 133,613,888.33/12,628.63
  6. Step 6: Final answer
    x = 10,580.23

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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.