Home / 9,903.40-13,669.62-5,714.44

Finding the Fourth Proportional to 9,903.40, 13,669.62 and 5,714.44

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Solution

The fourth proportional to 9,903.40, 13,669.62 and 5,714.44 is: 7,887.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.40 : 13,669.62 = 5,714.44 : x
  2. Step 2: Convert to fraction form
    9,903.40/13,669.62 = 5,714.44/x
  3. Step 3: Cross multiply
    9,903.40x = 13,669.62 × 5,714.44
  4. Step 4: Simplify right side
    9,903.40x = 78,114,223.31
  5. Step 5: Solve for x
    x = 78,114,223.31/9,903.40
  6. Step 6: Final answer
    x = 7,887.62

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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.