Home / 13,021.36-19,528.40-4,256.80

Finding the Fourth Proportional to 13,021.36, 19,528.40 and 4,256.80

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Solution

The fourth proportional to 13,021.36, 19,528.40 and 4,256.80 is: 6,384.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.36 : 19,528.40 = 4,256.80 : x
  2. Step 2: Convert to fraction form
    13,021.36/19,528.40 = 4,256.80/x
  3. Step 3: Cross multiply
    13,021.36x = 19,528.40 × 4,256.80
  4. Step 4: Simplify right side
    13,021.36x = 83,128,493.12
  5. Step 5: Solve for x
    x = 83,128,493.12/13,021.36
  6. Step 6: Final answer
    x = 6,384.01

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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.