Home / 14,315.80-21,475.72-5,551.60

Finding the Fourth Proportional to 14,315.80, 21,475.72 and 5,551.60

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Solution

The fourth proportional to 14,315.80, 21,475.72 and 5,551.60 is: 8,328.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,315.80 : 21,475.72 = 5,551.60 : x
  2. Step 2: Convert to fraction form
    14,315.80/21,475.72 = 5,551.60/x
  3. Step 3: Cross multiply
    14,315.80x = 21,475.72 × 5,551.60
  4. Step 4: Simplify right side
    14,315.80x = 119,224,485.89
  5. Step 5: Solve for x
    x = 119,224,485.89/14,315.80
  6. Step 6: Final answer
    x = 8,328.18

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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.