Home / 19,116.73-28,678.68-8,586.49

Finding the Fourth Proportional to 19,116.73, 28,678.68 and 8,586.49

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Solution

The fourth proportional to 19,116.73, 28,678.68 and 8,586.49 is: 12,881.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,116.73 : 28,678.68 = 8,586.49 : x
  2. Step 2: Convert to fraction form
    19,116.73/28,678.68 = 8,586.49/x
  3. Step 3: Cross multiply
    19,116.73x = 28,678.68 × 8,586.49
  4. Step 4: Simplify right side
    19,116.73x = 246,249,199.03
  5. Step 5: Solve for x
    x = 246,249,199.03/19,116.73
  6. Step 6: Final answer
    x = 12,881.35

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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.