Home / 8,139.51-11,243.07-6,019.35

Finding the Fourth Proportional to 8,139.51, 11,243.07 and 6,019.35

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Solution

The fourth proportional to 8,139.51, 11,243.07 and 6,019.35 is: 8,314.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.51 : 11,243.07 = 6,019.35 : x
  2. Step 2: Convert to fraction form
    8,139.51/11,243.07 = 6,019.35/x
  3. Step 3: Cross multiply
    8,139.51x = 11,243.07 × 6,019.35
  4. Step 4: Simplify right side
    8,139.51x = 67,675,973.40
  5. Step 5: Solve for x
    x = 67,675,973.40/8,139.51
  6. Step 6: Final answer
    x = 8,314.50

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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.