Home / 11,883.20-16,430.13-10,406.98

Finding the Fourth Proportional to 11,883.20, 16,430.13 and 10,406.98

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Solution

The fourth proportional to 11,883.20, 16,430.13 and 10,406.98 is: 14,389.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,883.20 : 16,430.13 = 10,406.98 : x
  2. Step 2: Convert to fraction form
    11,883.20/16,430.13 = 10,406.98/x
  3. Step 3: Cross multiply
    11,883.20x = 16,430.13 × 10,406.98
  4. Step 4: Simplify right side
    11,883.20x = 170,987,900.12
  5. Step 5: Solve for x
    x = 170,987,900.12/11,883.20
  6. Step 6: Final answer
    x = 14,389.05

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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.