Home / 13,430.16-20,054.70-10,969.83

Finding the Fourth Proportional to 13,430.16, 20,054.70 and 10,969.83

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Solution

The fourth proportional to 13,430.16, 20,054.70 and 10,969.83 is: 16,380.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.16 : 20,054.70 = 10,969.83 : x
  2. Step 2: Convert to fraction form
    13,430.16/20,054.70 = 10,969.83/x
  3. Step 3: Cross multiply
    13,430.16x = 20,054.70 × 10,969.83
  4. Step 4: Simplify right side
    13,430.16x = 219,996,649.70
  5. Step 5: Solve for x
    x = 219,996,649.70/13,430.16
  6. Step 6: Final answer
    x = 16,380.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.