Home / 18,946.08-28,412.96-8,949.28

Finding the Fourth Proportional to 18,946.08, 28,412.96 and 8,949.28

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Solution

The fourth proportional to 18,946.08, 28,412.96 and 8,949.28 is: 13,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.08 : 28,412.96 = 8,949.28 : x
  2. Step 2: Convert to fraction form
    18,946.08/28,412.96 = 8,949.28/x
  3. Step 3: Cross multiply
    18,946.08x = 28,412.96 × 8,949.28
  4. Step 4: Simplify right side
    18,946.08x = 254,275,534.67
  5. Step 5: Solve for x
    x = 254,275,534.67/18,946.08
  6. Step 6: Final answer
    x = 13,421.01

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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.