Home / 19,783.86-27,302.07-12,230.00

Finding the Fourth Proportional to 19,783.86, 27,302.07 and 12,230.00

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Solution

The fourth proportional to 19,783.86, 27,302.07 and 12,230.00 is: 16,877.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.86 : 27,302.07 = 12,230.00 : x
  2. Step 2: Convert to fraction form
    19,783.86/27,302.07 = 12,230.00/x
  3. Step 3: Cross multiply
    19,783.86x = 27,302.07 × 12,230.00
  4. Step 4: Simplify right side
    19,783.86x = 333,904,384.36
  5. Step 5: Solve for x
    x = 333,904,384.36/19,783.86
  6. Step 6: Final answer
    x = 16,877.62

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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.