Home / 13,986.07-20,973.63-5,216.20

Finding the Fourth Proportional to 13,986.07, 20,973.63 and 5,216.20

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Solution

The fourth proportional to 13,986.07, 20,973.63 and 5,216.20 is: 7,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.07 : 20,973.63 = 5,216.20 : x
  2. Step 2: Convert to fraction form
    13,986.07/20,973.63 = 5,216.20/x
  3. Step 3: Cross multiply
    13,986.07x = 20,973.63 × 5,216.20
  4. Step 4: Simplify right side
    13,986.07x = 109,402,648.81
  5. Step 5: Solve for x
    x = 109,402,648.81/13,986.07
  6. Step 6: Final answer
    x = 7,822.26

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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.