Home / 19,418.58-26,790.03-10,918.76

Finding the Fourth Proportional to 19,418.58, 26,790.03 and 10,918.76

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Solution

The fourth proportional to 19,418.58, 26,790.03 and 10,918.76 is: 15,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.58 : 26,790.03 = 10,918.76 : x
  2. Step 2: Convert to fraction form
    19,418.58/26,790.03 = 10,918.76/x
  3. Step 3: Cross multiply
    19,418.58x = 26,790.03 × 10,918.76
  4. Step 4: Simplify right side
    19,418.58x = 292,513,774.01
  5. Step 5: Solve for x
    x = 292,513,774.01/19,418.58
  6. Step 6: Final answer
    x = 15,063.60

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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.