Home / 12,970.12-19,451.02-4,202.92

Finding the Fourth Proportional to 12,970.12, 19,451.02 and 4,202.92

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Solution

The fourth proportional to 12,970.12, 19,451.02 and 4,202.92 is: 6,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.12 : 19,451.02 = 4,202.92 : x
  2. Step 2: Convert to fraction form
    12,970.12/19,451.02 = 4,202.92/x
  3. Step 3: Cross multiply
    12,970.12x = 19,451.02 × 4,202.92
  4. Step 4: Simplify right side
    12,970.12x = 81,751,080.98
  5. Step 5: Solve for x
    x = 81,751,080.98/12,970.12
  6. Step 6: Final answer
    x = 6,303.03

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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.