Home / 13,243.32-18,275.04-7,935.48

Finding the Fourth Proportional to 13,243.32, 18,275.04 and 7,935.48

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Solution

The fourth proportional to 13,243.32, 18,275.04 and 7,935.48 is: 10,950.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.32 : 18,275.04 = 7,935.48 : x
  2. Step 2: Convert to fraction form
    13,243.32/18,275.04 = 7,935.48/x
  3. Step 3: Cross multiply
    13,243.32x = 18,275.04 × 7,935.48
  4. Step 4: Simplify right side
    13,243.32x = 145,021,214.42
  5. Step 5: Solve for x
    x = 145,021,214.42/13,243.32
  6. Step 6: Final answer
    x = 10,950.52

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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.