Home / 12,814.02-19,221.84-5,417.51

Finding the Fourth Proportional to 12,814.02, 19,221.84 and 5,417.51

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Solution

The fourth proportional to 12,814.02, 19,221.84 and 5,417.51 is: 8,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.02 : 19,221.84 = 5,417.51 : x
  2. Step 2: Convert to fraction form
    12,814.02/19,221.84 = 5,417.51/x
  3. Step 3: Cross multiply
    12,814.02x = 19,221.84 × 5,417.51
  4. Step 4: Simplify right side
    12,814.02x = 104,134,414.31
  5. Step 5: Solve for x
    x = 104,134,414.31/12,814.02
  6. Step 6: Final answer
    x = 8,126.60

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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.