Home / 18,736.50-28,118.60-8,875.80

Finding the Fourth Proportional to 18,736.50, 28,118.60 and 8,875.80

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Solution

The fourth proportional to 18,736.50, 28,118.60 and 8,875.80 is: 13,320.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.50 : 28,118.60 = 8,875.80 : x
  2. Step 2: Convert to fraction form
    18,736.50/28,118.60 = 8,875.80/x
  3. Step 3: Cross multiply
    18,736.50x = 28,118.60 × 8,875.80
  4. Step 4: Simplify right side
    18,736.50x = 249,575,069.88
  5. Step 5: Solve for x
    x = 249,575,069.88/18,736.50
  6. Step 6: Final answer
    x = 13,320.26

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1.5x scale

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.