Home / 13,268.40-18,309.93-7,300.01

Finding the Fourth Proportional to 13,268.40, 18,309.93 and 7,300.01

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Solution

The fourth proportional to 13,268.40, 18,309.93 and 7,300.01 is: 10,073.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,268.40 : 18,309.93 = 7,300.01 : x
  2. Step 2: Convert to fraction form
    13,268.40/18,309.93 = 7,300.01/x
  3. Step 3: Cross multiply
    13,268.40x = 18,309.93 × 7,300.01
  4. Step 4: Simplify right side
    13,268.40x = 133,662,580.55
  5. Step 5: Solve for x
    x = 133,662,580.55/13,268.40
  6. Step 6: Final answer
    x = 10,073.75

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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.