Home / 19,457.28-26,855.85-11,078.64

Finding the Fourth Proportional to 19,457.28, 26,855.85 and 11,078.64

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Solution

The fourth proportional to 19,457.28, 26,855.85 and 11,078.64 is: 15,291.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.28 : 26,855.85 = 11,078.64 : x
  2. Step 2: Convert to fraction form
    19,457.28/26,855.85 = 11,078.64/x
  3. Step 3: Cross multiply
    19,457.28x = 26,855.85 × 11,078.64
  4. Step 4: Simplify right side
    19,457.28x = 297,526,294.04
  5. Step 5: Solve for x
    x = 297,526,294.04/19,457.28
  6. Step 6: Final answer
    x = 15,291.26

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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.