Home / 26,416.23-39,627.78-8,640.67

Finding the Fourth Proportional to 26,416.23, 39,627.78 and 8,640.67

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Solution

The fourth proportional to 26,416.23, 39,627.78 and 8,640.67 is: 12,962.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,416.23 : 39,627.78 = 8,640.67 : x
  2. Step 2: Convert to fraction form
    26,416.23/39,627.78 = 8,640.67/x
  3. Step 3: Cross multiply
    26,416.23x = 39,627.78 × 8,640.67
  4. Step 4: Simplify right side
    26,416.23x = 342,410,569.81
  5. Step 5: Solve for x
    x = 342,410,569.81/26,416.23
  6. Step 6: Final answer
    x = 12,962.13

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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.