Home / 19,784.34-29,683.53-6,636.69

Finding the Fourth Proportional to 19,784.34, 29,683.53 and 6,636.69

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Solution

The fourth proportional to 19,784.34, 29,683.53 and 6,636.69 is: 9,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.34 : 29,683.53 = 6,636.69 : x
  2. Step 2: Convert to fraction form
    19,784.34/29,683.53 = 6,636.69/x
  3. Step 3: Cross multiply
    19,784.34x = 29,683.53 × 6,636.69
  4. Step 4: Simplify right side
    19,784.34x = 197,000,386.72
  5. Step 5: Solve for x
    x = 197,000,386.72/19,784.34
  6. Step 6: Final answer
    x = 9,957.39

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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.