Home / 13,239.55-19,859.48-4,355.47

Finding the Fourth Proportional to 13,239.55, 19,859.48 and 4,355.47

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Solution

The fourth proportional to 13,239.55, 19,859.48 and 4,355.47 is: 6,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.55 : 19,859.48 = 4,355.47 : x
  2. Step 2: Convert to fraction form
    13,239.55/19,859.48 = 4,355.47/x
  3. Step 3: Cross multiply
    13,239.55x = 19,859.48 × 4,355.47
  4. Step 4: Simplify right side
    13,239.55x = 86,497,388.74
  5. Step 5: Solve for x
    x = 86,497,388.74/13,239.55
  6. Step 6: Final answer
    x = 6,533.26

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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.