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Finding the Fourth Proportional to 14,190, 19,582.02 and 7,816.92

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Solution

The fourth proportional to 14,190, 19,582.02 and 7,816.92 is: 10,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,190 : 19,582.02 = 7,816.92 : x
  2. Step 2: Convert to fraction form
    14,190/19,582.02 = 7,816.92/x
  3. Step 3: Cross multiply
    14,190x = 19,582.02 × 7,816.92
  4. Step 4: Simplify right side
    14,190x = 153,071,083.78
  5. Step 5: Solve for x
    x = 153,071,083.78/14,190
  6. Step 6: Final answer
    x = 10,787.25

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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.