Home / 16,878.48-23,285.16-11,291.28

Finding the Fourth Proportional to 16,878.48, 23,285.16 and 11,291.28

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Solution

The fourth proportional to 16,878.48, 23,285.16 and 11,291.28 is: 15,577.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.48 : 23,285.16 = 11,291.28 : x
  2. Step 2: Convert to fraction form
    16,878.48/23,285.16 = 11,291.28/x
  3. Step 3: Cross multiply
    16,878.48x = 23,285.16 × 11,291.28
  4. Step 4: Simplify right side
    16,878.48x = 262,919,261.40
  5. Step 5: Solve for x
    x = 262,919,261.40/16,878.48
  6. Step 6: Final answer
    x = 15,577.19

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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.