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Finding the Fourth Proportional to 19,144, 26,420.34 and 10,762.12

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Solution

The fourth proportional to 19,144, 26,420.34 and 10,762.12 is: 14,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144 : 26,420.34 = 10,762.12 : x
  2. Step 2: Convert to fraction form
    19,144/26,420.34 = 10,762.12/x
  3. Step 3: Cross multiply
    19,144x = 26,420.34 × 10,762.12
  4. Step 4: Simplify right side
    19,144x = 284,338,869.52
  5. Step 5: Solve for x
    x = 284,338,869.52/19,144
  6. Step 6: Final answer
    x = 14,852.64

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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.