Home / 13,621.69-18,794.59-7,953.22

Finding the Fourth Proportional to 13,621.69, 18,794.59 and 7,953.22

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Solution

The fourth proportional to 13,621.69, 18,794.59 and 7,953.22 is: 10,973.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.69 : 18,794.59 = 7,953.22 : x
  2. Step 2: Convert to fraction form
    13,621.69/18,794.59 = 7,953.22/x
  3. Step 3: Cross multiply
    13,621.69x = 18,794.59 × 7,953.22
  4. Step 4: Simplify right side
    13,621.69x = 149,477,509.08
  5. Step 5: Solve for x
    x = 149,477,509.08/13,621.69
  6. Step 6: Final answer
    x = 10,973.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.