Home / 13,295.40-18,347.46-8,259.36

Finding the Fourth Proportional to 13,295.40, 18,347.46 and 8,259.36

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Solution

The fourth proportional to 13,295.40, 18,347.46 and 8,259.36 is: 11,397.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.40 : 18,347.46 = 8,259.36 : x
  2. Step 2: Convert to fraction form
    13,295.40/18,347.46 = 8,259.36/x
  3. Step 3: Cross multiply
    13,295.40x = 18,347.46 × 8,259.36
  4. Step 4: Simplify right side
    13,295.40x = 151,538,277.23
  5. Step 5: Solve for x
    x = 151,538,277.23/13,295.40
  6. Step 6: Final answer
    x = 11,397.80

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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.