Home / 12,739.22-19,103.98-4,946.22

Finding the Fourth Proportional to 12,739.22, 19,103.98 and 4,946.22

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Solution

The fourth proportional to 12,739.22, 19,103.98 and 4,946.22 is: 7,417.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.22 : 19,103.98 = 4,946.22 : x
  2. Step 2: Convert to fraction form
    12,739.22/19,103.98 = 4,946.22/x
  3. Step 3: Cross multiply
    12,739.22x = 19,103.98 × 4,946.22
  4. Step 4: Simplify right side
    12,739.22x = 94,492,487.96
  5. Step 5: Solve for x
    x = 94,492,487.96/12,739.22
  6. Step 6: Final answer
    x = 7,417.45

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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.