Home / 19,148.84-28,731.90-9,783.08

Finding the Fourth Proportional to 19,148.84, 28,731.90 and 9,783.08

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Solution

The fourth proportional to 19,148.84, 28,731.90 and 9,783.08 is: 14,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,148.84 : 28,731.90 = 9,783.08 : x
  2. Step 2: Convert to fraction form
    19,148.84/28,731.90 = 9,783.08/x
  3. Step 3: Cross multiply
    19,148.84x = 28,731.90 × 9,783.08
  4. Step 4: Simplify right side
    19,148.84x = 281,086,476.25
  5. Step 5: Solve for x
    x = 281,086,476.25/19,148.84
  6. Step 6: Final answer
    x = 14,679.03

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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.