Home / 19,376.04-26,742.96-11,421

Finding the Fourth Proportional to 19,376.04, 26,742.96 and 11,421

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Solution

The fourth proportional to 19,376.04, 26,742.96 and 11,421 is: 15,763.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,376.04 : 26,742.96 = 11,421 : x
  2. Step 2: Convert to fraction form
    19,376.04/26,742.96 = 11,421/x
  3. Step 3: Cross multiply
    19,376.04x = 26,742.96 × 11,421
  4. Step 4: Simplify right side
    19,376.04x = 305,431,346.16
  5. Step 5: Solve for x
    x = 305,431,346.16/19,376.04
  6. Step 6: Final answer
    x = 15,763.35

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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.