Home / 18,703.40-28,031.64-9,346.02

Finding the Fourth Proportional to 18,703.40, 28,031.64 and 9,346.02

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Solution

The fourth proportional to 18,703.40, 28,031.64 and 9,346.02 is: 14,007.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.40 : 28,031.64 = 9,346.02 : x
  2. Step 2: Convert to fraction form
    18,703.40/28,031.64 = 9,346.02/x
  3. Step 3: Cross multiply
    18,703.40x = 28,031.64 × 9,346.02
  4. Step 4: Simplify right side
    18,703.40x = 261,984,268.07
  5. Step 5: Solve for x
    x = 261,984,268.07/18,703.40
  6. Step 6: Final answer
    x = 14,007.31

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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.