Home / 13,528.62-18,659.16-11,643.30

Finding the Fourth Proportional to 13,528.62, 18,659.16 and 11,643.30

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Solution

The fourth proportional to 13,528.62, 18,659.16 and 11,643.30 is: 16,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.62 : 18,659.16 = 11,643.30 : x
  2. Step 2: Convert to fraction form
    13,528.62/18,659.16 = 11,643.30/x
  3. Step 3: Cross multiply
    13,528.62x = 18,659.16 × 11,643.30
  4. Step 4: Simplify right side
    13,528.62x = 217,254,197.63
  5. Step 5: Solve for x
    x = 217,254,197.63/13,528.62
  6. Step 6: Final answer
    x = 16,058.86

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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.