Home / 13,261.04-19,891.08-3,400.40

Finding the Fourth Proportional to 13,261.04, 19,891.08 and 3,400.40

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Solution

The fourth proportional to 13,261.04, 19,891.08 and 3,400.40 is: 5,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.04 : 19,891.08 = 3,400.40 : x
  2. Step 2: Convert to fraction form
    13,261.04/19,891.08 = 3,400.40/x
  3. Step 3: Cross multiply
    13,261.04x = 19,891.08 × 3,400.40
  4. Step 4: Simplify right side
    13,261.04x = 67,637,628.43
  5. Step 5: Solve for x
    x = 67,637,628.43/13,261.04
  6. Step 6: Final answer
    x = 5,100.48

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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.