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Finding the Fourth Proportional to 14,353.04, 19,806.49 and 7,980.06

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Solution

The fourth proportional to 14,353.04, 19,806.49 and 7,980.06 is: 11,012.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.04 : 19,806.49 = 7,980.06 : x
  2. Step 2: Convert to fraction form
    14,353.04/19,806.49 = 7,980.06/x
  3. Step 3: Cross multiply
    14,353.04x = 19,806.49 × 7,980.06
  4. Step 4: Simplify right side
    14,353.04x = 158,056,978.59
  5. Step 5: Solve for x
    x = 158,056,978.59/14,353.04
  6. Step 6: Final answer
    x = 11,012.09

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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.