Home / 13,190.48-19,779.32-4,874.40

Finding the Fourth Proportional to 13,190.48, 19,779.32 and 4,874.40

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Solution

The fourth proportional to 13,190.48, 19,779.32 and 4,874.40 is: 7,309.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190.48 : 19,779.32 = 4,874.40 : x
  2. Step 2: Convert to fraction form
    13,190.48/19,779.32 = 4,874.40/x
  3. Step 3: Cross multiply
    13,190.48x = 19,779.32 × 4,874.40
  4. Step 4: Simplify right side
    13,190.48x = 96,412,293.04
  5. Step 5: Solve for x
    x = 96,412,293.04/13,190.48
  6. Step 6: Final answer
    x = 7,309.24

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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.