Home / 7,901.91-11,854.67-2,636.51

Finding the Fourth Proportional to 7,901.91, 11,854.67 and 2,636.51

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Solution

The fourth proportional to 7,901.91, 11,854.67 and 2,636.51 is: 3,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,901.91 : 11,854.67 = 2,636.51 : x
  2. Step 2: Convert to fraction form
    7,901.91/11,854.67 = 2,636.51/x
  3. Step 3: Cross multiply
    7,901.91x = 11,854.67 × 2,636.51
  4. Step 4: Simplify right side
    7,901.91x = 31,254,883.55
  5. Step 5: Solve for x
    x = 31,254,883.55/7,901.91
  6. Step 6: Final answer
    x = 3,955.36

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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.