Home / 19,113.12-26,377.74-11,157.89

Finding the Fourth Proportional to 19,113.12, 26,377.74 and 11,157.89

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Solution

The fourth proportional to 19,113.12, 26,377.74 and 11,157.89 is: 15,398.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.12 : 26,377.74 = 11,157.89 : x
  2. Step 2: Convert to fraction form
    19,113.12/26,377.74 = 11,157.89/x
  3. Step 3: Cross multiply
    19,113.12x = 26,377.74 × 11,157.89
  4. Step 4: Simplify right side
    19,113.12x = 294,319,789.48
  5. Step 5: Solve for x
    x = 294,319,789.48/19,113.12
  6. Step 6: Final answer
    x = 15,398.84

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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.