Home / 13,537.13-18,686.70-11,641.05

Finding the Fourth Proportional to 13,537.13, 18,686.70 and 11,641.05

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Solution

The fourth proportional to 13,537.13, 18,686.70 and 11,641.05 is: 16,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.13 : 18,686.70 = 11,641.05 : x
  2. Step 2: Convert to fraction form
    13,537.13/18,686.70 = 11,641.05/x
  3. Step 3: Cross multiply
    13,537.13x = 18,686.70 × 11,641.05
  4. Step 4: Simplify right side
    13,537.13x = 217,532,809.04
  5. Step 5: Solve for x
    x = 217,532,809.04/13,537.13
  6. Step 6: Final answer
    x = 16,069.35

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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.