Home / 19,000.41-28,457.78-9,147.06

Finding the Fourth Proportional to 19,000.41, 28,457.78 and 9,147.06

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Solution

The fourth proportional to 19,000.41, 28,457.78 and 9,147.06 is: 13,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.41 : 28,457.78 = 9,147.06 : x
  2. Step 2: Convert to fraction form
    19,000.41/28,457.78 = 9,147.06/x
  3. Step 3: Cross multiply
    19,000.41x = 28,457.78 × 9,147.06
  4. Step 4: Simplify right side
    19,000.41x = 260,305,021.13
  5. Step 5: Solve for x
    x = 260,305,021.13/19,000.41
  6. Step 6: Final answer
    x = 13,699.97

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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.