Home / 14,899.36-20,509.56-12,881.92

Finding the Fourth Proportional to 14,899.36, 20,509.56 and 12,881.92

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Solution

The fourth proportional to 14,899.36, 20,509.56 and 12,881.92 is: 17,732.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,899.36 : 20,509.56 = 12,881.92 : x
  2. Step 2: Convert to fraction form
    14,899.36/20,509.56 = 12,881.92/x
  3. Step 3: Cross multiply
    14,899.36x = 20,509.56 × 12,881.92
  4. Step 4: Simplify right side
    14,899.36x = 264,202,511.16
  5. Step 5: Solve for x
    x = 264,202,511.16/14,899.36
  6. Step 6: Final answer
    x = 17,732.47

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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.