Home / 12,695.19-19,039.08-3,810.15

Finding the Fourth Proportional to 12,695.19, 19,039.08 and 3,810.15

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Solution

The fourth proportional to 12,695.19, 19,039.08 and 3,810.15 is: 5,714.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.19 : 19,039.08 = 3,810.15 : x
  2. Step 2: Convert to fraction form
    12,695.19/19,039.08 = 3,810.15/x
  3. Step 3: Cross multiply
    12,695.19x = 19,039.08 × 3,810.15
  4. Step 4: Simplify right side
    12,695.19x = 72,541,750.66
  5. Step 5: Solve for x
    x = 72,541,750.66/12,695.19
  6. Step 6: Final answer
    x = 5,714.11

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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.