Home / 26,485.55-39,728.32-6,763.40

Finding the Fourth Proportional to 26,485.55, 39,728.32 and 6,763.40

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Solution

The fourth proportional to 26,485.55, 39,728.32 and 6,763.40 is: 10,145.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,485.55 : 39,728.32 = 6,763.40 : x
  2. Step 2: Convert to fraction form
    26,485.55/39,728.32 = 6,763.40/x
  3. Step 3: Cross multiply
    26,485.55x = 39,728.32 × 6,763.40
  4. Step 4: Simplify right side
    26,485.55x = 268,698,519.49
  5. Step 5: Solve for x
    x = 268,698,519.49/26,485.55
  6. Step 6: Final answer
    x = 10,145.10

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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.