Home / 13,270.64-18,312.78-7,302.86

Finding the Fourth Proportional to 13,270.64, 18,312.78 and 7,302.86

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Solution

The fourth proportional to 13,270.64, 18,312.78 and 7,302.86 is: 10,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.64 : 18,312.78 = 7,302.86 : x
  2. Step 2: Convert to fraction form
    13,270.64/18,312.78 = 7,302.86/x
  3. Step 3: Cross multiply
    13,270.64x = 18,312.78 × 7,302.86
  4. Step 4: Simplify right side
    13,270.64x = 133,735,576.99
  5. Step 5: Solve for x
    x = 133,735,576.99/13,270.64
  6. Step 6: Final answer
    x = 10,077.56

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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.