Home / 13,888.73-19,146.53-9,902.93

Finding the Fourth Proportional to 13,888.73, 19,146.53 and 9,902.93

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Solution

The fourth proportional to 13,888.73, 19,146.53 and 9,902.93 is: 13,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.73 : 19,146.53 = 9,902.93 : x
  2. Step 2: Convert to fraction form
    13,888.73/19,146.53 = 9,902.93/x
  3. Step 3: Cross multiply
    13,888.73x = 19,146.53 × 9,902.93
  4. Step 4: Simplify right side
    13,888.73x = 189,606,696.82
  5. Step 5: Solve for x
    x = 189,606,696.82/13,888.73
  6. Step 6: Final answer
    x = 13,651.84

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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.