Home / 19,784.45-29,684.43-8,683.40

Finding the Fourth Proportional to 19,784.45, 29,684.43 and 8,683.40

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Solution

The fourth proportional to 19,784.45, 29,684.43 and 8,683.40 is: 13,028.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.45 : 29,684.43 = 8,683.40 : x
  2. Step 2: Convert to fraction form
    19,784.45/29,684.43 = 8,683.40/x
  3. Step 3: Cross multiply
    19,784.45x = 29,684.43 × 8,683.40
  4. Step 4: Simplify right side
    19,784.45x = 257,761,631.04
  5. Step 5: Solve for x
    x = 257,761,631.04/19,784.45
  6. Step 6: Final answer
    x = 13,028.50

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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.