Home / 13,488.42-18,623.61-11,256.06

Finding the Fourth Proportional to 13,488.42, 18,623.61 and 11,256.06

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Solution

The fourth proportional to 13,488.42, 18,623.61 and 11,256.06 is: 15,541.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.42 : 18,623.61 = 11,256.06 : x
  2. Step 2: Convert to fraction form
    13,488.42/18,623.61 = 11,256.06/x
  3. Step 3: Cross multiply
    13,488.42x = 18,623.61 × 11,256.06
  4. Step 4: Simplify right side
    13,488.42x = 209,628,471.58
  5. Step 5: Solve for x
    x = 209,628,471.58/13,488.42
  6. Step 6: Final answer
    x = 15,541.37

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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.