Home / 19,918.08-27,486.95-10,965.51

Finding the Fourth Proportional to 19,918.08, 27,486.95 and 10,965.51

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Solution

The fourth proportional to 19,918.08, 27,486.95 and 10,965.51 is: 15,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.08 : 27,486.95 = 10,965.51 : x
  2. Step 2: Convert to fraction form
    19,918.08/27,486.95 = 10,965.51/x
  3. Step 3: Cross multiply
    19,918.08x = 27,486.95 × 10,965.51
  4. Step 4: Simplify right side
    19,918.08x = 301,408,370.27
  5. Step 5: Solve for x
    x = 301,408,370.27/19,918.08
  6. Step 6: Final answer
    x = 15,132.40

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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.