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Finding the Fourth Proportional to 11,223.40, 15,683.60 and 11,223.40

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Solution

The fourth proportional to 11,223.40, 15,683.60 and 11,223.40 is: 15,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.40 : 15,683.60 = 11,223.40 : x
  2. Step 2: Convert to fraction form
    11,223.40/15,683.60 = 11,223.40/x
  3. Step 3: Cross multiply
    11,223.40x = 15,683.60 × 11,223.40
  4. Step 4: Simplify right side
    11,223.40x = 176,023,316.24
  5. Step 5: Solve for x
    x = 176,023,316.24/11,223.40
  6. Step 6: Final answer
    x = 15,683.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.