Home / 12,971.76-19,457.88-4,206.64

Finding the Fourth Proportional to 12,971.76, 19,457.88 and 4,206.64

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Solution

The fourth proportional to 12,971.76, 19,457.88 and 4,206.64 is: 6,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.76 : 19,457.88 = 4,206.64 : x
  2. Step 2: Convert to fraction form
    12,971.76/19,457.88 = 4,206.64/x
  3. Step 3: Cross multiply
    12,971.76x = 19,457.88 × 4,206.64
  4. Step 4: Simplify right side
    12,971.76x = 81,852,296.32
  5. Step 5: Solve for x
    x = 81,852,296.32/12,971.76
  6. Step 6: Final answer
    x = 6,310.04

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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.