Home / 18,701.50-28,064.40-9,467.50

Finding the Fourth Proportional to 18,701.50, 28,064.40 and 9,467.50

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Solution

The fourth proportional to 18,701.50, 28,064.40 and 9,467.50 is: 14,207.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701.50 : 28,064.40 = 9,467.50 : x
  2. Step 2: Convert to fraction form
    18,701.50/28,064.40 = 9,467.50/x
  3. Step 3: Cross multiply
    18,701.50x = 28,064.40 × 9,467.50
  4. Step 4: Simplify right side
    18,701.50x = 265,699,707
  5. Step 5: Solve for x
    x = 265,699,707/18,701.50
  6. Step 6: Final answer
    x = 14,207.40

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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.