Home / 9,091.90-13,638.48-3,543.40

Finding the Fourth Proportional to 9,091.90, 13,638.48 and 3,543.40

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Solution

The fourth proportional to 9,091.90, 13,638.48 and 3,543.40 is: 5,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.90 : 13,638.48 = 3,543.40 : x
  2. Step 2: Convert to fraction form
    9,091.90/13,638.48 = 3,543.40/x
  3. Step 3: Cross multiply
    9,091.90x = 13,638.48 × 3,543.40
  4. Step 4: Simplify right side
    9,091.90x = 48,326,590.03
  5. Step 5: Solve for x
    x = 48,326,590.03/9,091.90
  6. Step 6: Final answer
    x = 5,315.35

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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.