Home / 19,412.93-26,790.21-11,455.45

Finding the Fourth Proportional to 19,412.93, 26,790.21 and 11,455.45

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Solution

The fourth proportional to 19,412.93, 26,790.21 and 11,455.45 is: 15,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412.93 : 26,790.21 = 11,455.45 : x
  2. Step 2: Convert to fraction form
    19,412.93/26,790.21 = 11,455.45/x
  3. Step 3: Cross multiply
    19,412.93x = 26,790.21 × 11,455.45
  4. Step 4: Simplify right side
    19,412.93x = 306,893,844.17
  5. Step 5: Solve for x
    x = 306,893,844.17/19,412.93
  6. Step 6: Final answer
    x = 15,808.73

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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.