Home / 13,888.07-19,145.59-9,902.26

Finding the Fourth Proportional to 13,888.07, 19,145.59 and 9,902.26

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Solution

The fourth proportional to 13,888.07, 19,145.59 and 9,902.26 is: 13,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.07 : 19,145.59 = 9,902.26 : x
  2. Step 2: Convert to fraction form
    13,888.07/19,145.59 = 9,902.26/x
  3. Step 3: Cross multiply
    13,888.07x = 19,145.59 × 9,902.26
  4. Step 4: Simplify right side
    13,888.07x = 189,584,562.17
  5. Step 5: Solve for x
    x = 189,584,562.17/13,888.07
  6. Step 6: Final answer
    x = 13,650.90

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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.