Home / 12,604.96-17,384.40-11,376.16

Finding the Fourth Proportional to 12,604.96, 17,384.40 and 11,376.16

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Solution

The fourth proportional to 12,604.96, 17,384.40 and 11,376.16 is: 15,689.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,604.96 : 17,384.40 = 11,376.16 : x
  2. Step 2: Convert to fraction form
    12,604.96/17,384.40 = 11,376.16/x
  3. Step 3: Cross multiply
    12,604.96x = 17,384.40 × 11,376.16
  4. Step 4: Simplify right side
    12,604.96x = 197,767,715.90
  5. Step 5: Solve for x
    x = 197,767,715.90/12,604.96
  6. Step 6: Final answer
    x = 15,689.67

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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.