Home / 13,119.63-19,683.77-5,326.35

Finding the Fourth Proportional to 13,119.63, 19,683.77 and 5,326.35

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Solution

The fourth proportional to 13,119.63, 19,683.77 and 5,326.35 is: 7,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.63 : 19,683.77 = 5,326.35 : x
  2. Step 2: Convert to fraction form
    13,119.63/19,683.77 = 5,326.35/x
  3. Step 3: Cross multiply
    13,119.63x = 19,683.77 × 5,326.35
  4. Step 4: Simplify right side
    13,119.63x = 104,842,621.71
  5. Step 5: Solve for x
    x = 104,842,621.71/13,119.63
  6. Step 6: Final answer
    x = 7,991.28

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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.