Home / 7,869.64-11,803.58-4,939.24

Finding the Fourth Proportional to 7,869.64, 11,803.58 and 4,939.24

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Solution

The fourth proportional to 7,869.64, 11,803.58 and 4,939.24 is: 7,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.64 : 11,803.58 = 4,939.24 : x
  2. Step 2: Convert to fraction form
    7,869.64/11,803.58 = 4,939.24/x
  3. Step 3: Cross multiply
    7,869.64x = 11,803.58 × 4,939.24
  4. Step 4: Simplify right side
    7,869.64x = 58,300,714.48
  5. Step 5: Solve for x
    x = 58,300,714.48/7,869.64
  6. Step 6: Final answer
    x = 7,408.31

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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.