Home / 8,649.09-12,979.31-4,756.23

Finding the Fourth Proportional to 8,649.09, 12,979.31 and 4,756.23

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Solution

The fourth proportional to 8,649.09, 12,979.31 and 4,756.23 is: 7,137.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.09 : 12,979.31 = 4,756.23 : x
  2. Step 2: Convert to fraction form
    8,649.09/12,979.31 = 4,756.23/x
  3. Step 3: Cross multiply
    8,649.09x = 12,979.31 × 4,756.23
  4. Step 4: Simplify right side
    8,649.09x = 61,732,559.82
  5. Step 5: Solve for x
    x = 61,732,559.82/8,649.09
  6. Step 6: Final answer
    x = 7,137.46

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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.