Home / 14,882.58-20,528.73-12,889.71

Finding the Fourth Proportional to 14,882.58, 20,528.73 and 12,889.71

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Solution

The fourth proportional to 14,882.58, 20,528.73 and 12,889.71 is: 17,779.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,882.58 : 20,528.73 = 12,889.71 : x
  2. Step 2: Convert to fraction form
    14,882.58/20,528.73 = 12,889.71/x
  3. Step 3: Cross multiply
    14,882.58x = 20,528.73 × 12,889.71
  4. Step 4: Simplify right side
    14,882.58x = 264,609,376.37
  5. Step 5: Solve for x
    x = 264,609,376.37/14,882.58
  6. Step 6: Final answer
    x = 17,779.81

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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.