Home / 18,985.08-28,475.46-5,133

Finding the Fourth Proportional to 18,985.08, 28,475.46 and 5,133

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Solution

The fourth proportional to 18,985.08, 28,475.46 and 5,133 is: 7,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.08 : 28,475.46 = 5,133 : x
  2. Step 2: Convert to fraction form
    18,985.08/28,475.46 = 5,133/x
  3. Step 3: Cross multiply
    18,985.08x = 28,475.46 × 5,133
  4. Step 4: Simplify right side
    18,985.08x = 146,164,536.18
  5. Step 5: Solve for x
    x = 146,164,536.18/18,985.08
  6. Step 6: Final answer
    x = 7,698.92

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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.