Home / 10,804.15-16,190.09-9,780.08

Finding the Fourth Proportional to 10,804.15, 16,190.09 and 9,780.08

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Solution

The fourth proportional to 10,804.15, 16,190.09 and 9,780.08 is: 14,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,804.15 : 16,190.09 = 9,780.08 : x
  2. Step 2: Convert to fraction form
    10,804.15/16,190.09 = 9,780.08/x
  3. Step 3: Cross multiply
    10,804.15x = 16,190.09 × 9,780.08
  4. Step 4: Simplify right side
    10,804.15x = 158,340,326.51
  5. Step 5: Solve for x
    x = 158,340,326.51/10,804.15
  6. Step 6: Final answer
    x = 14,655.52

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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.