Home / 12,289,919.12-16,955,358.12-7,698,246.80

Finding the Fourth Proportional to 12,289,919.12, 16,955,358.12 and 7,698,246.80

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Solution

The fourth proportional to 12,289,919.12, 16,955,358.12 and 7,698,246.80 is: 10,620,617.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,289,919.12 : 16,955,358.12 = 7,698,246.80 : x
  2. Step 2: Convert to fraction form
    12,289,919.12/16,955,358.12 = 7,698,246.80/x
  3. Step 3: Cross multiply
    12,289,919.12x = 16,955,358.12 × 7,698,246.80
  4. Step 4: Simplify right side
    12,289,919.12x = 130,526,531,390,144.02
  5. Step 5: Solve for x
    x = 130,526,531,390,144.02/12,289,919.12
  6. Step 6: Final answer
    x = 10,620,617.61

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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.