Home / 13,528.79-18,648.73-13,266.35

Finding the Fourth Proportional to 13,528.79, 18,648.73 and 13,266.35

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Solution

The fourth proportional to 13,528.79, 18,648.73 and 13,266.35 is: 18,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.79 : 18,648.73 = 13,266.35 : x
  2. Step 2: Convert to fraction form
    13,528.79/18,648.73 = 13,266.35/x
  3. Step 3: Cross multiply
    13,528.79x = 18,648.73 × 13,266.35
  4. Step 4: Simplify right side
    13,528.79x = 247,400,579.24
  5. Step 5: Solve for x
    x = 247,400,579.24/13,528.79
  6. Step 6: Final answer
    x = 18,286.97

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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.