Home / 12,890,013.82-17,787,864.02-7,088,794.94

Finding the Fourth Proportional to 12,890,013.82, 17,787,864.02 and 7,088,794.94

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Solution

The fourth proportional to 12,890,013.82, 17,787,864.02 and 7,088,794.94 is: 9,782,341.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,013.82 : 17,787,864.02 = 7,088,794.94 : x
  2. Step 2: Convert to fraction form
    12,890,013.82/17,787,864.02 = 7,088,794.94/x
  3. Step 3: Cross multiply
    12,890,013.82x = 17,787,864.02 × 7,088,794.94
  4. Step 4: Simplify right side
    12,890,013.82x = 126,094,520,458,384.06
  5. Step 5: Solve for x
    x = 126,094,520,458,384.06/12,890,013.82
  6. Step 6: Final answer
    x = 9,782,341.76

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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.