Home / 13,702.72-20,541.78-11,377.67

Finding the Fourth Proportional to 13,702.72, 20,541.78 and 11,377.67

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Solution

The fourth proportional to 13,702.72, 20,541.78 and 11,377.67 is: 17,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.72 : 20,541.78 = 11,377.67 : x
  2. Step 2: Convert to fraction form
    13,702.72/20,541.78 = 11,377.67/x
  3. Step 3: Cross multiply
    13,702.72x = 20,541.78 × 11,377.67
  4. Step 4: Simplify right side
    13,702.72x = 233,717,459.34
  5. Step 5: Solve for x
    x = 233,717,459.34/13,702.72
  6. Step 6: Final answer
    x = 17,056.28

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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.