Home / 19,872.86-29,809.27-7,392.60

Finding the Fourth Proportional to 19,872.86, 29,809.27 and 7,392.60

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Solution

The fourth proportional to 19,872.86, 29,809.27 and 7,392.60 is: 11,088.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.86 : 29,809.27 = 7,392.60 : x
  2. Step 2: Convert to fraction form
    19,872.86/29,809.27 = 7,392.60/x
  3. Step 3: Cross multiply
    19,872.86x = 29,809.27 × 7,392.60
  4. Step 4: Simplify right side
    19,872.86x = 220,368,009.40
  5. Step 5: Solve for x
    x = 220,368,009.40/19,872.86
  6. Step 6: Final answer
    x = 11,088.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.