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Finding the Fourth Proportional to 19,869.76, 29,804.64 and 6,018.88

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Solution

The fourth proportional to 19,869.76, 29,804.64 and 6,018.88 is: 9,028.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.76 : 29,804.64 = 6,018.88 : x
  2. Step 2: Convert to fraction form
    19,869.76/29,804.64 = 6,018.88/x
  3. Step 3: Cross multiply
    19,869.76x = 29,804.64 × 6,018.88
  4. Step 4: Simplify right side
    19,869.76x = 179,390,551.60
  5. Step 5: Solve for x
    x = 179,390,551.60/19,869.76
  6. Step 6: Final answer
    x = 9,028.32

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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.