Home / 13,528.90-18,675.63-8,225.41

Finding the Fourth Proportional to 13,528.90, 18,675.63 and 8,225.41

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Solution

The fourth proportional to 13,528.90, 18,675.63 and 8,225.41 is: 11,354.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.90 : 18,675.63 = 8,225.41 : x
  2. Step 2: Convert to fraction form
    13,528.90/18,675.63 = 8,225.41/x
  3. Step 3: Cross multiply
    13,528.90x = 18,675.63 × 8,225.41
  4. Step 4: Simplify right side
    13,528.90x = 153,614,713.76
  5. Step 5: Solve for x
    x = 153,614,713.76/13,528.90
  6. Step 6: Final answer
    x = 11,354.56

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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.