Home / 12,837.60-19,246.80-7,000.80

Finding the Fourth Proportional to 12,837.60, 19,246.80 and 7,000.80

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Solution

The fourth proportional to 12,837.60, 19,246.80 and 7,000.80 is: 10,495.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,837.60 : 19,246.80 = 7,000.80 : x
  2. Step 2: Convert to fraction form
    12,837.60/19,246.80 = 7,000.80/x
  3. Step 3: Cross multiply
    12,837.60x = 19,246.80 × 7,000.80
  4. Step 4: Simplify right side
    12,837.60x = 134,742,997.44
  5. Step 5: Solve for x
    x = 134,742,997.44/12,837.60
  6. Step 6: Final answer
    x = 10,495.96

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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.