Home / 12,309,140.88-16,985,724.48-6,802,449.84

Finding the Fourth Proportional to 12,309,140.88, 16,985,724.48 and 6,802,449.84

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Solution

The fourth proportional to 12,309,140.88, 16,985,724.48 and 6,802,449.84 is: 9,386,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309,140.88 : 16,985,724.48 = 6,802,449.84 : x
  2. Step 2: Convert to fraction form
    12,309,140.88/16,985,724.48 = 6,802,449.84/x
  3. Step 3: Cross multiply
    12,309,140.88x = 16,985,724.48 × 6,802,449.84
  4. Step 4: Simplify right side
    12,309,140.88x = 115,544,538,771,260.08
  5. Step 5: Solve for x
    x = 115,544,538,771,260.08/12,309,140.88
  6. Step 6: Final answer
    x = 9,386,888.97

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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.