Home / 8,761.48-13,138.08-3,210.88

Finding the Fourth Proportional to 8,761.48, 13,138.08 and 3,210.88

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Solution

The fourth proportional to 8,761.48, 13,138.08 and 3,210.88 is: 4,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.48 : 13,138.08 = 3,210.88 : x
  2. Step 2: Convert to fraction form
    8,761.48/13,138.08 = 3,210.88/x
  3. Step 3: Cross multiply
    8,761.48x = 13,138.08 × 3,210.88
  4. Step 4: Simplify right side
    8,761.48x = 42,184,798.31
  5. Step 5: Solve for x
    x = 42,184,798.31/8,761.48
  6. Step 6: Final answer
    x = 4,814.80

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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.