Home / 14,083.22-21,130.50-5,320.64

Finding the Fourth Proportional to 14,083.22, 21,130.50 and 5,320.64

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Solution

The fourth proportional to 14,083.22, 21,130.50 and 5,320.64 is: 7,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,083.22 : 21,130.50 = 5,320.64 : x
  2. Step 2: Convert to fraction form
    14,083.22/21,130.50 = 5,320.64/x
  3. Step 3: Cross multiply
    14,083.22x = 21,130.50 × 5,320.64
  4. Step 4: Simplify right side
    14,083.22x = 112,427,783.52
  5. Step 5: Solve for x
    x = 112,427,783.52/14,083.22
  6. Step 6: Final answer
    x = 7,983.10

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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.