Home / 12,776.51-19,143.50-4,451.94

Finding the Fourth Proportional to 12,776.51, 19,143.50 and 4,451.94

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Solution

The fourth proportional to 12,776.51, 19,143.50 and 4,451.94 is: 6,670.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.51 : 19,143.50 = 4,451.94 : x
  2. Step 2: Convert to fraction form
    12,776.51/19,143.50 = 4,451.94/x
  3. Step 3: Cross multiply
    12,776.51x = 19,143.50 × 4,451.94
  4. Step 4: Simplify right side
    12,776.51x = 85,225,707.83
  5. Step 5: Solve for x
    x = 85,225,707.83/12,776.51
  6. Step 6: Final answer
    x = 6,670.50

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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.