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Finding the Fourth Proportional to 19,348, 26,702.76 and 11,390.96

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Solution

The fourth proportional to 19,348, 26,702.76 and 11,390.96 is: 15,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348 : 26,702.76 = 11,390.96 : x
  2. Step 2: Convert to fraction form
    19,348/26,702.76 = 11,390.96/x
  3. Step 3: Cross multiply
    19,348x = 26,702.76 × 11,390.96
  4. Step 4: Simplify right side
    19,348x = 304,170,071.05
  5. Step 5: Solve for x
    x = 304,170,071.05/19,348
  6. Step 6: Final answer
    x = 15,721.01

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Double scale
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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.