Home / 13,888.03-19,145.55-9,902.23

Finding the Fourth Proportional to 13,888.03, 19,145.55 and 9,902.23

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Solution

The fourth proportional to 13,888.03, 19,145.55 and 9,902.23 is: 13,650.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,888.03 : 19,145.55 = 9,902.23 : x
  2. Step 2: Convert to fraction form
    13,888.03/19,145.55 = 9,902.23/x
  3. Step 3: Cross multiply
    13,888.03x = 19,145.55 × 9,902.23
  4. Step 4: Simplify right side
    13,888.03x = 189,583,639.58
  5. Step 5: Solve for x
    x = 189,583,639.58/13,888.03
  6. Step 6: Final answer
    x = 13,650.87

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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.