Home / 13,589.04-18,784.24-11,337.78

Finding the Fourth Proportional to 13,589.04, 18,784.24 and 11,337.78

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Solution

The fourth proportional to 13,589.04, 18,784.24 and 11,337.78 is: 15,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.04 : 18,784.24 = 11,337.78 : x
  2. Step 2: Convert to fraction form
    13,589.04/18,784.24 = 11,337.78/x
  3. Step 3: Cross multiply
    13,589.04x = 18,784.24 × 11,337.78
  4. Step 4: Simplify right side
    13,589.04x = 212,971,580.59
  5. Step 5: Solve for x
    x = 212,971,580.59/13,589.04
  6. Step 6: Final answer
    x = 15,672.31

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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.