Home / 14,804.40-20,429.63-8,090.02

Finding the Fourth Proportional to 14,804.40, 20,429.63 and 8,090.02

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Solution

The fourth proportional to 14,804.40, 20,429.63 and 8,090.02 is: 11,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,804.40 : 20,429.63 = 8,090.02 : x
  2. Step 2: Convert to fraction form
    14,804.40/20,429.63 = 8,090.02/x
  3. Step 3: Cross multiply
    14,804.40x = 20,429.63 × 8,090.02
  4. Step 4: Simplify right side
    14,804.40x = 165,276,130.72
  5. Step 5: Solve for x
    x = 165,276,130.72/14,804.40
  6. Step 6: Final answer
    x = 11,163.98

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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.