Home / 13,523.55-18,675.27-12,787.26

Finding the Fourth Proportional to 13,523.55, 18,675.27 and 12,787.26

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Solution

The fourth proportional to 13,523.55, 18,675.27 and 12,787.26 is: 17,658.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.55 : 18,675.27 = 12,787.26 : x
  2. Step 2: Convert to fraction form
    13,523.55/18,675.27 = 12,787.26/x
  3. Step 3: Cross multiply
    13,523.55x = 18,675.27 × 12,787.26
  4. Step 4: Simplify right side
    13,523.55x = 238,805,533.06
  5. Step 5: Solve for x
    x = 238,805,533.06/13,523.55
  6. Step 6: Final answer
    x = 17,658.49

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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.