Home / 13,054.60-19,581.94-4,290.20

Finding the Fourth Proportional to 13,054.60, 19,581.94 and 4,290.20

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Solution

The fourth proportional to 13,054.60, 19,581.94 and 4,290.20 is: 6,435.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.60 : 19,581.94 = 4,290.20 : x
  2. Step 2: Convert to fraction form
    13,054.60/19,581.94 = 4,290.20/x
  3. Step 3: Cross multiply
    13,054.60x = 19,581.94 × 4,290.20
  4. Step 4: Simplify right side
    13,054.60x = 84,010,438.99
  5. Step 5: Solve for x
    x = 84,010,438.99/13,054.60
  6. Step 6: Final answer
    x = 6,435.31

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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.