Home / 12,079.48-16,669.86-7,043.56

Finding the Fourth Proportional to 12,079.48, 16,669.86 and 7,043.56

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Solution

The fourth proportional to 12,079.48, 16,669.86 and 7,043.56 is: 9,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.48 : 16,669.86 = 7,043.56 : x
  2. Step 2: Convert to fraction form
    12,079.48/16,669.86 = 7,043.56/x
  3. Step 3: Cross multiply
    12,079.48x = 16,669.86 × 7,043.56
  4. Step 4: Simplify right side
    12,079.48x = 117,415,159.10
  5. Step 5: Solve for x
    x = 117,415,159.10/12,079.48
  6. Step 6: Final answer
    x = 9,720.22

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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.