Home / 13,513.48-18,638.34-11,628.23

Finding the Fourth Proportional to 13,513.48, 18,638.34 and 11,628.23

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Solution

The fourth proportional to 13,513.48, 18,638.34 and 11,628.23 is: 16,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.48 : 18,638.34 = 11,628.23 : x
  2. Step 2: Convert to fraction form
    13,513.48/18,638.34 = 11,628.23/x
  3. Step 3: Cross multiply
    13,513.48x = 18,638.34 × 11,628.23
  4. Step 4: Simplify right side
    13,513.48x = 216,730,865.65
  5. Step 5: Solve for x
    x = 216,730,865.65/13,513.48
  6. Step 6: Final answer
    x = 16,038.12

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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.