Home / 13,637.86-20,450.63-4,275.67

Finding the Fourth Proportional to 13,637.86, 20,450.63 and 4,275.67

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Solution

The fourth proportional to 13,637.86, 20,450.63 and 4,275.67 is: 6,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.86 : 20,450.63 = 4,275.67 : x
  2. Step 2: Convert to fraction form
    13,637.86/20,450.63 = 4,275.67/x
  3. Step 3: Cross multiply
    13,637.86x = 20,450.63 × 4,275.67
  4. Step 4: Simplify right side
    13,637.86x = 87,440,145.17
  5. Step 5: Solve for x
    x = 87,440,145.17/13,637.86
  6. Step 6: Final answer
    x = 6,411.57

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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.