Home / 18,783.04-28,159.96-7,692.52

Finding the Fourth Proportional to 18,783.04, 28,159.96 and 7,692.52

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Solution

The fourth proportional to 18,783.04, 28,159.96 and 7,692.52 is: 11,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.04 : 28,159.96 = 7,692.52 : x
  2. Step 2: Convert to fraction form
    18,783.04/28,159.96 = 7,692.52/x
  3. Step 3: Cross multiply
    18,783.04x = 28,159.96 × 7,692.52
  4. Step 4: Simplify right side
    18,783.04x = 216,621,055.50
  5. Step 5: Solve for x
    x = 216,621,055.50/18,783.04
  6. Step 6: Final answer
    x = 11,532.80

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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.