Home / 8,676.24-11,970.40-5,315.52

Finding the Fourth Proportional to 8,676.24, 11,970.40 and 5,315.52

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Solution

The fourth proportional to 8,676.24, 11,970.40 and 5,315.52 is: 7,333.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.24 : 11,970.40 = 5,315.52 : x
  2. Step 2: Convert to fraction form
    8,676.24/11,970.40 = 5,315.52/x
  3. Step 3: Cross multiply
    8,676.24x = 11,970.40 × 5,315.52
  4. Step 4: Simplify right side
    8,676.24x = 63,628,900.61
  5. Step 5: Solve for x
    x = 63,628,900.61/8,676.24
  6. Step 6: Final answer
    x = 7,333.70

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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.