Home / 15,459.24-21,314.91-13,064.88

Finding the Fourth Proportional to 15,459.24, 21,314.91 and 13,064.88

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Solution

The fourth proportional to 15,459.24, 21,314.91 and 13,064.88 is: 18,013.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.24 : 21,314.91 = 13,064.88 : x
  2. Step 2: Convert to fraction form
    15,459.24/21,314.91 = 13,064.88/x
  3. Step 3: Cross multiply
    15,459.24x = 21,314.91 × 13,064.88
  4. Step 4: Simplify right side
    15,459.24x = 278,476,741.36
  5. Step 5: Solve for x
    x = 278,476,741.36/15,459.24
  6. Step 6: Final answer
    x = 18,013.61

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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.