Home / 13,256.13-18,280.89-8,710.82

Finding the Fourth Proportional to 13,256.13, 18,280.89 and 8,710.82

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Solution

The fourth proportional to 13,256.13, 18,280.89 and 8,710.82 is: 12,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.13 : 18,280.89 = 8,710.82 : x
  2. Step 2: Convert to fraction form
    13,256.13/18,280.89 = 8,710.82/x
  3. Step 3: Cross multiply
    13,256.13x = 18,280.89 × 8,710.82
  4. Step 4: Simplify right side
    13,256.13x = 159,241,467.96
  5. Step 5: Solve for x
    x = 159,241,467.96/13,256.13
  6. Step 6: Final answer
    x = 12,012.67

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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.