Home / 18,996.90-28,501.09-5,670.33

Finding the Fourth Proportional to 18,996.90, 28,501.09 and 5,670.33

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Solution

The fourth proportional to 18,996.90, 28,501.09 and 5,670.33 is: 8,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.90 : 28,501.09 = 5,670.33 : x
  2. Step 2: Convert to fraction form
    18,996.90/28,501.09 = 5,670.33/x
  3. Step 3: Cross multiply
    18,996.90x = 28,501.09 × 5,670.33
  4. Step 4: Simplify right side
    18,996.90x = 161,610,560.71
  5. Step 5: Solve for x
    x = 161,610,560.71/18,996.90
  6. Step 6: Final answer
    x = 8,507.20

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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.