Home / 15,106.99-20,853.26-12,973.96

Finding the Fourth Proportional to 15,106.99, 20,853.26 and 12,973.96

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Solution

The fourth proportional to 15,106.99, 20,853.26 and 12,973.96 is: 17,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.99 : 20,853.26 = 12,973.96 : x
  2. Step 2: Convert to fraction form
    15,106.99/20,853.26 = 12,973.96/x
  3. Step 3: Cross multiply
    15,106.99x = 20,853.26 × 12,973.96
  4. Step 4: Simplify right side
    15,106.99x = 270,549,256.84
  5. Step 5: Solve for x
    x = 270,549,256.84/15,106.99
  6. Step 6: Final answer
    x = 17,908.88

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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.