Home / 13,889.82-19,120.95-10,740.06

Finding the Fourth Proportional to 13,889.82, 19,120.95 and 10,740.06

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Solution

The fourth proportional to 13,889.82, 19,120.95 and 10,740.06 is: 14,784.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.82 : 19,120.95 = 10,740.06 : x
  2. Step 2: Convert to fraction form
    13,889.82/19,120.95 = 10,740.06/x
  3. Step 3: Cross multiply
    13,889.82x = 19,120.95 × 10,740.06
  4. Step 4: Simplify right side
    13,889.82x = 205,360,150.26
  5. Step 5: Solve for x
    x = 205,360,150.26/13,889.82
  6. Step 6: Final answer
    x = 14,784.94

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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.