Home / 13,308.50-18,365.34-7,340.16

Finding the Fourth Proportional to 13,308.50, 18,365.34 and 7,340.16

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Solution

The fourth proportional to 13,308.50, 18,365.34 and 7,340.16 is: 10,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.50 : 18,365.34 = 7,340.16 : x
  2. Step 2: Convert to fraction form
    13,308.50/18,365.34 = 7,340.16/x
  3. Step 3: Cross multiply
    13,308.50x = 18,365.34 × 7,340.16
  4. Step 4: Simplify right side
    13,308.50x = 134,804,534.05
  5. Step 5: Solve for x
    x = 134,804,534.05/13,308.50
  6. Step 6: Final answer
    x = 10,129.21

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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.