Home / 19,887.90-27,443.65-11,710.18

Finding the Fourth Proportional to 19,887.90, 27,443.65 and 11,710.18

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Solution

The fourth proportional to 19,887.90, 27,443.65 and 11,710.18 is: 16,159.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.90 : 27,443.65 = 11,710.18 : x
  2. Step 2: Convert to fraction form
    19,887.90/27,443.65 = 11,710.18/x
  3. Step 3: Cross multiply
    19,887.90x = 27,443.65 × 11,710.18
  4. Step 4: Simplify right side
    19,887.90x = 321,370,081.36
  5. Step 5: Solve for x
    x = 321,370,081.36/19,887.90
  6. Step 6: Final answer
    x = 16,159.08

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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.