Home / 7,845.84-11,708.10-6,973.20

Finding the Fourth Proportional to 7,845.84, 11,708.10 and 6,973.20

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Solution

The fourth proportional to 7,845.84, 11,708.10 and 6,973.20 is: 10,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.84 : 11,708.10 = 6,973.20 : x
  2. Step 2: Convert to fraction form
    7,845.84/11,708.10 = 6,973.20/x
  3. Step 3: Cross multiply
    7,845.84x = 11,708.10 × 6,973.20
  4. Step 4: Simplify right side
    7,845.84x = 81,642,922.92
  5. Step 5: Solve for x
    x = 81,642,922.92/7,845.84
  6. Step 6: Final answer
    x = 10,405.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.