Home / 13,589.36-18,756.30-8,283.08

Finding the Fourth Proportional to 13,589.36, 18,756.30 and 8,283.08

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Solution

The fourth proportional to 13,589.36, 18,756.30 and 8,283.08 is: 11,432.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.36 : 18,756.30 = 8,283.08 : x
  2. Step 2: Convert to fraction form
    13,589.36/18,756.30 = 8,283.08/x
  3. Step 3: Cross multiply
    13,589.36x = 18,756.30 × 8,283.08
  4. Step 4: Simplify right side
    13,589.36x = 155,359,933.40
  5. Step 5: Solve for x
    x = 155,359,933.40/13,589.36
  6. Step 6: Final answer
    x = 11,432.47

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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.