Home / 13,207.85-19,812.65-4,887.66

Finding the Fourth Proportional to 13,207.85, 19,812.65 and 4,887.66

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Solution

The fourth proportional to 13,207.85, 19,812.65 and 4,887.66 is: 7,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.85 : 19,812.65 = 4,887.66 : x
  2. Step 2: Convert to fraction form
    13,207.85/19,812.65 = 4,887.66/x
  3. Step 3: Cross multiply
    13,207.85x = 19,812.65 × 4,887.66
  4. Step 4: Simplify right side
    13,207.85x = 96,837,472.46
  5. Step 5: Solve for x
    x = 96,837,472.46/13,207.85
  6. Step 6: Final answer
    x = 7,331.81

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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.