Home / 12,406.04-17,120.37-6,740.74

Finding the Fourth Proportional to 12,406.04, 17,120.37 and 6,740.74

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Solution

The fourth proportional to 12,406.04, 17,120.37 and 6,740.74 is: 9,302.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.04 : 17,120.37 = 6,740.74 : x
  2. Step 2: Convert to fraction form
    12,406.04/17,120.37 = 6,740.74/x
  3. Step 3: Cross multiply
    12,406.04x = 17,120.37 × 6,740.74
  4. Step 4: Simplify right side
    12,406.04x = 115,403,962.87
  5. Step 5: Solve for x
    x = 115,403,962.87/12,406.04
  6. Step 6: Final answer
    x = 9,302.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.