Home / 13,889.03-19,146.93-9,903.23

Finding the Fourth Proportional to 13,889.03, 19,146.93 and 9,903.23

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Solution

The fourth proportional to 13,889.03, 19,146.93 and 9,903.23 is: 13,652.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,889.03 : 19,146.93 = 9,903.23 : x
  2. Step 2: Convert to fraction form
    13,889.03/19,146.93 = 9,903.23/x
  3. Step 3: Cross multiply
    13,889.03x = 19,146.93 × 9,903.23
  4. Step 4: Simplify right side
    13,889.03x = 189,616,451.58
  5. Step 5: Solve for x
    x = 189,616,451.58/13,889.03
  6. Step 6: Final answer
    x = 13,652.25

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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.