Home / 19,109.88-26,374.32-11,156.40

Finding the Fourth Proportional to 19,109.88, 26,374.32 and 11,156.40

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Solution

The fourth proportional to 19,109.88, 26,374.32 and 11,156.40 is: 15,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.88 : 26,374.32 = 11,156.40 : x
  2. Step 2: Convert to fraction form
    19,109.88/26,374.32 = 11,156.40/x
  3. Step 3: Cross multiply
    19,109.88x = 26,374.32 × 11,156.40
  4. Step 4: Simplify right side
    19,109.88x = 294,242,463.65
  5. Step 5: Solve for x
    x = 294,242,463.65/19,109.88
  6. Step 6: Final answer
    x = 15,397.40

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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.