Home / 15,004.08-20,709.81-8,717.67

Finding the Fourth Proportional to 15,004.08, 20,709.81 and 8,717.67

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Solution

The fourth proportional to 15,004.08, 20,709.81 and 8,717.67 is: 12,032.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.08 : 20,709.81 = 8,717.67 : x
  2. Step 2: Convert to fraction form
    15,004.08/20,709.81 = 8,717.67/x
  3. Step 3: Cross multiply
    15,004.08x = 20,709.81 × 8,717.67
  4. Step 4: Simplify right side
    15,004.08x = 180,541,289.34
  5. Step 5: Solve for x
    x = 180,541,289.34/15,004.08
  6. Step 6: Final answer
    x = 12,032.81

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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.