Home / 19,215.48-26,512.83-11,661.63

Finding the Fourth Proportional to 19,215.48, 26,512.83 and 11,661.63

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Solution

The fourth proportional to 19,215.48, 26,512.83 and 11,661.63 is: 16,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.48 : 26,512.83 = 11,661.63 : x
  2. Step 2: Convert to fraction form
    19,215.48/26,512.83 = 11,661.63/x
  3. Step 3: Cross multiply
    19,215.48x = 26,512.83 × 11,661.63
  4. Step 4: Simplify right side
    19,215.48x = 309,182,813.71
  5. Step 5: Solve for x
    x = 309,182,813.71/19,215.48
  6. Step 6: Final answer
    x = 16,090.30

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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.