Home / 13,242.72-18,269.73-8,529.74

Finding the Fourth Proportional to 13,242.72, 18,269.73 and 8,529.74

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Solution

The fourth proportional to 13,242.72, 18,269.73 and 8,529.74 is: 11,767.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.72 : 18,269.73 = 8,529.74 : x
  2. Step 2: Convert to fraction form
    13,242.72/18,269.73 = 8,529.74/x
  3. Step 3: Cross multiply
    13,242.72x = 18,269.73 × 8,529.74
  4. Step 4: Simplify right side
    13,242.72x = 155,835,955.42
  5. Step 5: Solve for x
    x = 155,835,955.42/13,242.72
  6. Step 6: Final answer
    x = 11,767.67

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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.