Home / 14,882.08-20,528.04-12,889.21

Finding the Fourth Proportional to 14,882.08, 20,528.04 and 12,889.21

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Solution

The fourth proportional to 14,882.08, 20,528.04 and 12,889.21 is: 17,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,882.08 : 20,528.04 = 12,889.21 : x
  2. Step 2: Convert to fraction form
    14,882.08/20,528.04 = 12,889.21/x
  3. Step 3: Cross multiply
    14,882.08x = 20,528.04 × 12,889.21
  4. Step 4: Simplify right side
    14,882.08x = 264,590,218.45
  5. Step 5: Solve for x
    x = 264,590,218.45/14,882.08
  6. Step 6: Final answer
    x = 17,779.12

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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.