Home / 13,381.98-18,459.69-10,538.88

Finding the Fourth Proportional to 13,381.98, 18,459.69 and 10,538.88

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Solution

The fourth proportional to 13,381.98, 18,459.69 and 10,538.88 is: 14,537.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.98 : 18,459.69 = 10,538.88 : x
  2. Step 2: Convert to fraction form
    13,381.98/18,459.69 = 10,538.88/x
  3. Step 3: Cross multiply
    13,381.98x = 18,459.69 × 10,538.88
  4. Step 4: Simplify right side
    13,381.98x = 194,544,457.75
  5. Step 5: Solve for x
    x = 194,544,457.75/13,381.98
  6. Step 6: Final answer
    x = 14,537.79

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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.