Home / 12,352.40-18,528.69-3,587.30

Finding the Fourth Proportional to 12,352.40, 18,528.69 and 3,587.30

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Solution

The fourth proportional to 12,352.40, 18,528.69 and 3,587.30 is: 5,380.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,352.40 : 18,528.69 = 3,587.30 : x
  2. Step 2: Convert to fraction form
    12,352.40/18,528.69 = 3,587.30/x
  3. Step 3: Cross multiply
    12,352.40x = 18,528.69 × 3,587.30
  4. Step 4: Simplify right side
    12,352.40x = 66,467,969.64
  5. Step 5: Solve for x
    x = 66,467,969.64/12,352.40
  6. Step 6: Final answer
    x = 5,380.98

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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.