Home / 14,780.21-20,397.36-8,322.07

Finding the Fourth Proportional to 14,780.21, 20,397.36 and 8,322.07

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Solution

The fourth proportional to 14,780.21, 20,397.36 and 8,322.07 is: 11,484.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.21 : 20,397.36 = 8,322.07 : x
  2. Step 2: Convert to fraction form
    14,780.21/20,397.36 = 8,322.07/x
  3. Step 3: Cross multiply
    14,780.21x = 20,397.36 × 8,322.07
  4. Step 4: Simplify right side
    14,780.21x = 169,748,287.92
  5. Step 5: Solve for x
    x = 169,748,287.92/14,780.21
  6. Step 6: Final answer
    x = 11,484.83

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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.