Home / 12,177.58-16,805.40-7,395.91

Finding the Fourth Proportional to 12,177.58, 16,805.40 and 7,395.91

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Solution

The fourth proportional to 12,177.58, 16,805.40 and 7,395.91 is: 10,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,177.58 : 16,805.40 = 7,395.91 : x
  2. Step 2: Convert to fraction form
    12,177.58/16,805.40 = 7,395.91/x
  3. Step 3: Cross multiply
    12,177.58x = 16,805.40 × 7,395.91
  4. Step 4: Simplify right side
    12,177.58x = 124,291,225.91
  5. Step 5: Solve for x
    x = 124,291,225.91/12,177.58
  6. Step 6: Final answer
    x = 10,206.56

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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.