Home / 19,610.51-27,054.27-12,887.30

Finding the Fourth Proportional to 19,610.51, 27,054.27 and 12,887.30

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Solution

The fourth proportional to 19,610.51, 27,054.27 and 12,887.30 is: 17,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,610.51 : 27,054.27 = 12,887.30 : x
  2. Step 2: Convert to fraction form
    19,610.51/27,054.27 = 12,887.30/x
  3. Step 3: Cross multiply
    19,610.51x = 27,054.27 × 12,887.30
  4. Step 4: Simplify right side
    19,610.51x = 348,656,561.41
  5. Step 5: Solve for x
    x = 348,656,561.41/19,610.51
  6. Step 6: Final answer
    x = 17,779.07

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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.