Home / 14,330.24-19,779.86-8,665

Finding the Fourth Proportional to 14,330.24, 19,779.86 and 8,665

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Solution

The fourth proportional to 14,330.24, 19,779.86 and 8,665 is: 11,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,330.24 : 19,779.86 = 8,665 : x
  2. Step 2: Convert to fraction form
    14,330.24/19,779.86 = 8,665/x
  3. Step 3: Cross multiply
    14,330.24x = 19,779.86 × 8,665
  4. Step 4: Simplify right side
    14,330.24x = 171,392,486.90
  5. Step 5: Solve for x
    x = 171,392,486.90/14,330.24
  6. Step 6: Final answer
    x = 11,960.20

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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.