Home / 13,971.95-19,280.91-7,684.33

Finding the Fourth Proportional to 13,971.95, 19,280.91 and 7,684.33

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Solution

The fourth proportional to 13,971.95, 19,280.91 and 7,684.33 is: 10,604.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.95 : 19,280.91 = 7,684.33 : x
  2. Step 2: Convert to fraction form
    13,971.95/19,280.91 = 7,684.33/x
  3. Step 3: Cross multiply
    13,971.95x = 19,280.91 × 7,684.33
  4. Step 4: Simplify right side
    13,971.95x = 148,160,826.94
  5. Step 5: Solve for x
    x = 148,160,826.94/13,971.95
  6. Step 6: Final answer
    x = 10,604.16

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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.