Home / 13,290.31-19,921.79-5,898.25

Finding the Fourth Proportional to 13,290.31, 19,921.79 and 5,898.25

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Solution

The fourth proportional to 13,290.31, 19,921.79 and 5,898.25 is: 8,841.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.31 : 19,921.79 = 5,898.25 : x
  2. Step 2: Convert to fraction form
    13,290.31/19,921.79 = 5,898.25/x
  3. Step 3: Cross multiply
    13,290.31x = 19,921.79 × 5,898.25
  4. Step 4: Simplify right side
    13,290.31x = 117,503,697.87
  5. Step 5: Solve for x
    x = 117,503,697.87/13,290.31
  6. Step 6: Final answer
    x = 8,841.31

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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.