Home / 13,185.60-19,778.40-5,392.59

Finding the Fourth Proportional to 13,185.60, 19,778.40 and 5,392.59

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Solution

The fourth proportional to 13,185.60, 19,778.40 and 5,392.59 is: 8,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185.60 : 19,778.40 = 5,392.59 : x
  2. Step 2: Convert to fraction form
    13,185.60/19,778.40 = 5,392.59/x
  3. Step 3: Cross multiply
    13,185.60x = 19,778.40 × 5,392.59
  4. Step 4: Simplify right side
    13,185.60x = 106,656,802.06
  5. Step 5: Solve for x
    x = 106,656,802.06/13,185.60
  6. Step 6: Final answer
    x = 8,088.89

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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.