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Finding the Fourth Proportional to 11,135.80, 16,703.70 and 3,741.40

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Solution

The fourth proportional to 11,135.80, 16,703.70 and 3,741.40 is: 5,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.80 : 16,703.70 = 3,741.40 : x
  2. Step 2: Convert to fraction form
    11,135.80/16,703.70 = 3,741.40/x
  3. Step 3: Cross multiply
    11,135.80x = 16,703.70 × 3,741.40
  4. Step 4: Simplify right side
    11,135.80x = 62,495,223.18
  5. Step 5: Solve for x
    x = 62,495,223.18/11,135.80
  6. Step 6: Final answer
    x = 5,612.10

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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.