Home / 13,548.24-18,697.80-7,960.08

Finding the Fourth Proportional to 13,548.24, 18,697.80 and 7,960.08

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Solution

The fourth proportional to 13,548.24, 18,697.80 and 7,960.08 is: 10,985.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.24 : 18,697.80 = 7,960.08 : x
  2. Step 2: Convert to fraction form
    13,548.24/18,697.80 = 7,960.08/x
  3. Step 3: Cross multiply
    13,548.24x = 18,697.80 × 7,960.08
  4. Step 4: Simplify right side
    13,548.24x = 148,835,983.82
  5. Step 5: Solve for x
    x = 148,835,983.82/13,548.24
  6. Step 6: Final answer
    x = 10,985.63

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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.