Home / 12,842.99-19,270.59-8,900.32

Finding the Fourth Proportional to 12,842.99, 19,270.59 and 8,900.32

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Solution

The fourth proportional to 12,842.99, 19,270.59 and 8,900.32 is: 13,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.99 : 19,270.59 = 8,900.32 : x
  2. Step 2: Convert to fraction form
    12,842.99/19,270.59 = 8,900.32/x
  3. Step 3: Cross multiply
    12,842.99x = 19,270.59 × 8,900.32
  4. Step 4: Simplify right side
    12,842.99x = 171,514,321.24
  5. Step 5: Solve for x
    x = 171,514,321.24/12,842.99
  6. Step 6: Final answer
    x = 13,354.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.