Home / 19,111.41-28,667.45-6,631.81

Finding the Fourth Proportional to 19,111.41, 28,667.45 and 6,631.81

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Solution

The fourth proportional to 19,111.41, 28,667.45 and 6,631.81 is: 9,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.41 : 28,667.45 = 6,631.81 : x
  2. Step 2: Convert to fraction form
    19,111.41/28,667.45 = 6,631.81/x
  3. Step 3: Cross multiply
    19,111.41x = 28,667.45 × 6,631.81
  4. Step 4: Simplify right side
    19,111.41x = 190,117,026.50
  5. Step 5: Solve for x
    x = 190,117,026.50/19,111.41
  6. Step 6: Final answer
    x = 9,947.83

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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.