Home / 11,586.52-15,985.36-7,106.80

Finding the Fourth Proportional to 11,586.52, 15,985.36 and 7,106.80

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Solution

The fourth proportional to 11,586.52, 15,985.36 and 7,106.80 is: 9,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,586.52 : 15,985.36 = 7,106.80 : x
  2. Step 2: Convert to fraction form
    11,586.52/15,985.36 = 7,106.80/x
  3. Step 3: Cross multiply
    11,586.52x = 15,985.36 × 7,106.80
  4. Step 4: Simplify right side
    11,586.52x = 113,604,756.45
  5. Step 5: Solve for x
    x = 113,604,756.45/11,586.52
  6. Step 6: Final answer
    x = 9,804.91

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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.