Home / 8,388.09-12,567.56-4,485.51

Finding the Fourth Proportional to 8,388.09, 12,567.56 and 4,485.51

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Solution

The fourth proportional to 8,388.09, 12,567.56 and 4,485.51 is: 6,720.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.09 : 12,567.56 = 4,485.51 : x
  2. Step 2: Convert to fraction form
    8,388.09/12,567.56 = 4,485.51/x
  3. Step 3: Cross multiply
    8,388.09x = 12,567.56 × 4,485.51
  4. Step 4: Simplify right side
    8,388.09x = 56,371,893.63
  5. Step 5: Solve for x
    x = 56,371,893.63/8,388.09
  6. Step 6: Final answer
    x = 6,720.47

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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.