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Finding the Fourth Proportional to 8,485.77, 12,726.23 and 2,937.68

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Solution

The fourth proportional to 8,485.77, 12,726.23 and 2,937.68 is: 4,405.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.77 : 12,726.23 = 2,937.68 : x
  2. Step 2: Convert to fraction form
    8,485.77/12,726.23 = 2,937.68/x
  3. Step 3: Cross multiply
    8,485.77x = 12,726.23 × 2,937.68
  4. Step 4: Simplify right side
    8,485.77x = 37,385,513.03
  5. Step 5: Solve for x
    x = 37,385,513.03/8,485.77
  6. Step 6: Final answer
    x = 4,405.67

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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.