Home / 19,287.90-26,620.14-12,214.98

Finding the Fourth Proportional to 19,287.90, 26,620.14 and 12,214.98

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Solution

The fourth proportional to 19,287.90, 26,620.14 and 12,214.98 is: 16,858.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.90 : 26,620.14 = 12,214.98 : x
  2. Step 2: Convert to fraction form
    19,287.90/26,620.14 = 12,214.98/x
  3. Step 3: Cross multiply
    19,287.90x = 26,620.14 × 12,214.98
  4. Step 4: Simplify right side
    19,287.90x = 325,164,477.70
  5. Step 5: Solve for x
    x = 325,164,477.70/19,287.90
  6. Step 6: Final answer
    x = 16,858.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.