Home / 8,674.34-11,970.59-5,137.79

Finding the Fourth Proportional to 8,674.34, 11,970.59 and 5,137.79

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Solution

The fourth proportional to 8,674.34, 11,970.59 and 5,137.79 is: 7,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.34 : 11,970.59 = 5,137.79 : x
  2. Step 2: Convert to fraction form
    8,674.34/11,970.59 = 5,137.79/x
  3. Step 3: Cross multiply
    8,674.34x = 11,970.59 × 5,137.79
  4. Step 4: Simplify right side
    8,674.34x = 61,502,292.05
  5. Step 5: Solve for x
    x = 61,502,292.05/8,674.34
  6. Step 6: Final answer
    x = 7,090.14

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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.