Home / 13,328.07-19,970.21-4,558.20

Finding the Fourth Proportional to 13,328.07, 19,970.21 and 4,558.20

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Solution

The fourth proportional to 13,328.07, 19,970.21 and 4,558.20 is: 6,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.07 : 19,970.21 = 4,558.20 : x
  2. Step 2: Convert to fraction form
    13,328.07/19,970.21 = 4,558.20/x
  3. Step 3: Cross multiply
    13,328.07x = 19,970.21 × 4,558.20
  4. Step 4: Simplify right side
    13,328.07x = 91,028,188.43
  5. Step 5: Solve for x
    x = 91,028,188.43/13,328.07
  6. Step 6: Final answer
    x = 6,829.81

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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.