Home / 13,239.36-19,861.48-4,355.20

Finding the Fourth Proportional to 13,239.36, 19,861.48 and 4,355.20

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Solution

The fourth proportional to 13,239.36, 19,861.48 and 4,355.20 is: 6,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.36 : 19,861.48 = 4,355.20 : x
  2. Step 2: Convert to fraction form
    13,239.36/19,861.48 = 4,355.20/x
  3. Step 3: Cross multiply
    13,239.36x = 19,861.48 × 4,355.20
  4. Step 4: Simplify right side
    13,239.36x = 86,500,717.70
  5. Step 5: Solve for x
    x = 86,500,717.70/13,239.36
  6. Step 6: Final answer
    x = 6,533.60

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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.