Home / 12,961,354.40-17,887,212.47-7,454,730.79

Finding the Fourth Proportional to 12,961,354.40, 17,887,212.47 and 7,454,730.79

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Solution

The fourth proportional to 12,961,354.40, 17,887,212.47 and 7,454,730.79 is: 10,287,841.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961,354.40 : 17,887,212.47 = 7,454,730.79 : x
  2. Step 2: Convert to fraction form
    12,961,354.40/17,887,212.47 = 7,454,730.79/x
  3. Step 3: Cross multiply
    12,961,354.40x = 17,887,212.47 × 7,454,730.79
  4. Step 4: Simplify right side
    12,961,354.40x = 133,344,353,546,443.94
  5. Step 5: Solve for x
    x = 133,344,353,546,443.94/12,961,354.40
  6. Step 6: Final answer
    x = 10,287,841.03

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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.