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Finding the Fourth Proportional to 13,484.59, 20,223.64 and 6,907.39

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Solution

The fourth proportional to 13,484.59, 20,223.64 and 6,907.39 is: 10,359.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.59 : 20,223.64 = 6,907.39 : x
  2. Step 2: Convert to fraction form
    13,484.59/20,223.64 = 6,907.39/x
  3. Step 3: Cross multiply
    13,484.59x = 20,223.64 × 6,907.39
  4. Step 4: Simplify right side
    13,484.59x = 139,692,526.77
  5. Step 5: Solve for x
    x = 139,692,526.77/13,484.59
  6. Step 6: Final answer
    x = 10,359.42

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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.