Home / 19,153.84-28,739.40-9,788.08

Finding the Fourth Proportional to 19,153.84, 28,739.40 and 9,788.08

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Solution

The fourth proportional to 19,153.84, 28,739.40 and 9,788.08 is: 14,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,153.84 : 28,739.40 = 9,788.08 : x
  2. Step 2: Convert to fraction form
    19,153.84/28,739.40 = 9,788.08/x
  3. Step 3: Cross multiply
    19,153.84x = 28,739.40 × 9,788.08
  4. Step 4: Simplify right side
    19,153.84x = 281,303,546.35
  5. Step 5: Solve for x
    x = 281,303,546.35/19,153.84
  6. Step 6: Final answer
    x = 14,686.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.