Home / 13,999.76-21,006.93-6,206.75

Finding the Fourth Proportional to 13,999.76, 21,006.93 and 6,206.75

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Solution

The fourth proportional to 13,999.76, 21,006.93 and 6,206.75 is: 9,313.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.76 : 21,006.93 = 6,206.75 : x
  2. Step 2: Convert to fraction form
    13,999.76/21,006.93 = 6,206.75/x
  3. Step 3: Cross multiply
    13,999.76x = 21,006.93 × 6,206.75
  4. Step 4: Simplify right side
    13,999.76x = 130,384,762.78
  5. Step 5: Solve for x
    x = 130,384,762.78/13,999.76
  6. Step 6: Final answer
    x = 9,313.36

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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.