Home / 9,905.34-13,669.44-5,429.34

Finding the Fourth Proportional to 9,905.34, 13,669.44 and 5,429.34

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Solution

The fourth proportional to 9,905.34, 13,669.44 and 5,429.34 is: 7,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,905.34 : 13,669.44 = 5,429.34 : x
  2. Step 2: Convert to fraction form
    9,905.34/13,669.44 = 5,429.34/x
  3. Step 3: Cross multiply
    9,905.34x = 13,669.44 × 5,429.34
  4. Step 4: Simplify right side
    9,905.34x = 74,216,037.37
  5. Step 5: Solve for x
    x = 74,216,037.37/9,905.34
  6. Step 6: Final answer
    x = 7,492.53

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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.