Home / 14,607.81-21,909.56-4,745.79

Finding the Fourth Proportional to 14,607.81, 21,909.56 and 4,745.79

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Solution

The fourth proportional to 14,607.81, 21,909.56 and 4,745.79 is: 7,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,607.81 : 21,909.56 = 4,745.79 : x
  2. Step 2: Convert to fraction form
    14,607.81/21,909.56 = 4,745.79/x
  3. Step 3: Cross multiply
    14,607.81x = 21,909.56 × 4,745.79
  4. Step 4: Simplify right side
    14,607.81x = 103,978,147.02
  5. Step 5: Solve for x
    x = 103,978,147.02/14,607.81
  6. Step 6: Final answer
    x = 7,117.98

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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.