Home / 13,599.64-18,758.88-9,828.36

Finding the Fourth Proportional to 13,599.64, 18,758.88 and 9,828.36

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Solution

The fourth proportional to 13,599.64, 18,758.88 and 9,828.36 is: 13,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.64 : 18,758.88 = 9,828.36 : x
  2. Step 2: Convert to fraction form
    13,599.64/18,758.88 = 9,828.36/x
  3. Step 3: Cross multiply
    13,599.64x = 18,758.88 × 9,828.36
  4. Step 4: Simplify right side
    13,599.64x = 184,369,025.84
  5. Step 5: Solve for x
    x = 184,369,025.84/13,599.64
  6. Step 6: Final answer
    x = 13,556.90

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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.