Home / 14,004.61-21,015.08-5,245.67

Finding the Fourth Proportional to 14,004.61, 21,015.08 and 5,245.67

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Solution

The fourth proportional to 14,004.61, 21,015.08 and 5,245.67 is: 7,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,004.61 : 21,015.08 = 5,245.67 : x
  2. Step 2: Convert to fraction form
    14,004.61/21,015.08 = 5,245.67/x
  3. Step 3: Cross multiply
    14,004.61x = 21,015.08 × 5,245.67
  4. Step 4: Simplify right side
    14,004.61x = 110,238,148.48
  5. Step 5: Solve for x
    x = 110,238,148.48/14,004.61
  6. Step 6: Final answer
    x = 7,871.56

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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.