Home / 13,558.13-18,700.58-12,442.67

Finding the Fourth Proportional to 13,558.13, 18,700.58 and 12,442.67

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Solution

The fourth proportional to 13,558.13, 18,700.58 and 12,442.67 is: 17,162.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.13 : 18,700.58 = 12,442.67 : x
  2. Step 2: Convert to fraction form
    13,558.13/18,700.58 = 12,442.67/x
  3. Step 3: Cross multiply
    13,558.13x = 18,700.58 × 12,442.67
  4. Step 4: Simplify right side
    13,558.13x = 232,685,083.54
  5. Step 5: Solve for x
    x = 232,685,083.54/13,558.13
  6. Step 6: Final answer
    x = 17,162.03

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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.