Home / 19,485.68-26,886.82-11,525

Finding the Fourth Proportional to 19,485.68, 26,886.82 and 11,525

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Solution

The fourth proportional to 19,485.68, 26,886.82 and 11,525 is: 15,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.68 : 26,886.82 = 11,525 : x
  2. Step 2: Convert to fraction form
    19,485.68/26,886.82 = 11,525/x
  3. Step 3: Cross multiply
    19,485.68x = 26,886.82 × 11,525
  4. Step 4: Simplify right side
    19,485.68x = 309,870,600.50
  5. Step 5: Solve for x
    x = 309,870,600.50/19,485.68
  6. Step 6: Final answer
    x = 15,902.48

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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.