Home / 12,970.88-19,457.70-3,610.92

Finding the Fourth Proportional to 12,970.88, 19,457.70 and 3,610.92

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Solution

The fourth proportional to 12,970.88, 19,457.70 and 3,610.92 is: 5,416.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,970.88 : 19,457.70 = 3,610.92 : x
  2. Step 2: Convert to fraction form
    12,970.88/19,457.70 = 3,610.92/x
  3. Step 3: Cross multiply
    12,970.88x = 19,457.70 × 3,610.92
  4. Step 4: Simplify right side
    12,970.88x = 70,260,198.08
  5. Step 5: Solve for x
    x = 70,260,198.08/12,970.88
  6. Step 6: Final answer
    x = 5,416.77

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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.