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Finding the Fourth Proportional to 19,188.52, 26,482.58 and 10,805

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Solution

The fourth proportional to 19,188.52, 26,482.58 and 10,805 is: 14,912.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.52 : 26,482.58 = 10,805 : x
  2. Step 2: Convert to fraction form
    19,188.52/26,482.58 = 10,805/x
  3. Step 3: Cross multiply
    19,188.52x = 26,482.58 × 10,805
  4. Step 4: Simplify right side
    19,188.52x = 286,144,276.90
  5. Step 5: Solve for x
    x = 286,144,276.90/19,188.52
  6. Step 6: Final answer
    x = 14,912.26

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Half scale
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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.