Home / 13,362.16-18,438.80-7,392.48

Finding the Fourth Proportional to 13,362.16, 18,438.80 and 7,392.48

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Solution

The fourth proportional to 13,362.16, 18,438.80 and 7,392.48 is: 10,201.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.16 : 18,438.80 = 7,392.48 : x
  2. Step 2: Convert to fraction form
    13,362.16/18,438.80 = 7,392.48/x
  3. Step 3: Cross multiply
    13,362.16x = 18,438.80 × 7,392.48
  4. Step 4: Simplify right side
    13,362.16x = 136,308,460.22
  5. Step 5: Solve for x
    x = 136,308,460.22/13,362.16
  6. Step 6: Final answer
    x = 10,201.08

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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.