Home / 9,315.37-13,980.35-3,472.30

Finding the Fourth Proportional to 9,315.37, 13,980.35 and 3,472.30

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Solution

The fourth proportional to 9,315.37, 13,980.35 and 3,472.30 is: 5,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.37 : 13,980.35 = 3,472.30 : x
  2. Step 2: Convert to fraction form
    9,315.37/13,980.35 = 3,472.30/x
  3. Step 3: Cross multiply
    9,315.37x = 13,980.35 × 3,472.30
  4. Step 4: Simplify right side
    9,315.37x = 48,543,969.31
  5. Step 5: Solve for x
    x = 48,543,969.31/9,315.37
  6. Step 6: Final answer
    x = 5,211.17

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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.