Home / 18,788.00-25,918.38-12,417.08

Finding the Fourth Proportional to 18,788.00, 25,918.38 and 12,417.08

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Solution

The fourth proportional to 18,788.00, 25,918.38 and 12,417.08 is: 17,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,788.00 : 25,918.38 = 12,417.08 : x
  2. Step 2: Convert to fraction form
    18,788.00/25,918.38 = 12,417.08/x
  3. Step 3: Cross multiply
    18,788.00x = 25,918.38 × 12,417.08
  4. Step 4: Simplify right side
    18,788.00x = 321,830,468.34
  5. Step 5: Solve for x
    x = 321,830,468.34/18,788.00
  6. Step 6: Final answer
    x = 17,129.58

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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.