Home / 9,725.15-13,420.60-5,746.18

Finding the Fourth Proportional to 9,725.15, 13,420.60 and 5,746.18

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Solution

The fourth proportional to 9,725.15, 13,420.60 and 5,746.18 is: 7,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,725.15 : 13,420.60 = 5,746.18 : x
  2. Step 2: Convert to fraction form
    9,725.15/13,420.60 = 5,746.18/x
  3. Step 3: Cross multiply
    9,725.15x = 13,420.60 × 5,746.18
  4. Step 4: Simplify right side
    9,725.15x = 77,117,183.31
  5. Step 5: Solve for x
    x = 77,117,183.31/9,725.15
  6. Step 6: Final answer
    x = 7,929.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.