Home / 14,730.89-20,328.27-8,270.36

Finding the Fourth Proportional to 14,730.89, 20,328.27 and 8,270.36

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Solution

The fourth proportional to 14,730.89, 20,328.27 and 8,270.36 is: 11,412.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,730.89 : 20,328.27 = 8,270.36 : x
  2. Step 2: Convert to fraction form
    14,730.89/20,328.27 = 8,270.36/x
  3. Step 3: Cross multiply
    14,730.89x = 20,328.27 × 8,270.36
  4. Step 4: Simplify right side
    14,730.89x = 168,122,009.44
  5. Step 5: Solve for x
    x = 168,122,009.44/14,730.89
  6. Step 6: Final answer
    x = 11,412.89

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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.