Home / 18,858.30-28,266.80-9,483.36

Finding the Fourth Proportional to 18,858.30, 28,266.80 and 9,483.36

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Solution

The fourth proportional to 18,858.30, 28,266.80 and 9,483.36 is: 14,214.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.30 : 28,266.80 = 9,483.36 : x
  2. Step 2: Convert to fraction form
    18,858.30/28,266.80 = 9,483.36/x
  3. Step 3: Cross multiply
    18,858.30x = 28,266.80 × 9,483.36
  4. Step 4: Simplify right side
    18,858.30x = 268,064,193.03
  5. Step 5: Solve for x
    x = 268,064,193.03/18,858.30
  6. Step 6: Final answer
    x = 14,214.65

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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.