Home / 12,731.86-19,110.75-9,038.26

Finding the Fourth Proportional to 12,731.86, 19,110.75 and 9,038.26

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Solution

The fourth proportional to 12,731.86, 19,110.75 and 9,038.26 is: 13,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.86 : 19,110.75 = 9,038.26 : x
  2. Step 2: Convert to fraction form
    12,731.86/19,110.75 = 9,038.26/x
  3. Step 3: Cross multiply
    12,731.86x = 19,110.75 × 9,038.26
  4. Step 4: Simplify right side
    12,731.86x = 172,727,927.30
  5. Step 5: Solve for x
    x = 172,727,927.30/12,731.86
  6. Step 6: Final answer
    x = 13,566.59

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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.