Home / 13,886.31-19,163.48-8,580.63

Finding the Fourth Proportional to 13,886.31, 19,163.48 and 8,580.63

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Solution

The fourth proportional to 13,886.31, 19,163.48 and 8,580.63 is: 11,841.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.31 : 19,163.48 = 8,580.63 : x
  2. Step 2: Convert to fraction form
    13,886.31/19,163.48 = 8,580.63/x
  3. Step 3: Cross multiply
    13,886.31x = 19,163.48 × 8,580.63
  4. Step 4: Simplify right side
    13,886.31x = 164,434,688.49
  5. Step 5: Solve for x
    x = 164,434,688.49/13,886.31
  6. Step 6: Final answer
    x = 11,841.50

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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.