Home / 13,345.42-18,415.93-7,376.73

Finding the Fourth Proportional to 13,345.42, 18,415.93 and 7,376.73

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Solution

The fourth proportional to 13,345.42, 18,415.93 and 7,376.73 is: 10,179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.42 : 18,415.93 = 7,376.73 : x
  2. Step 2: Convert to fraction form
    13,345.42/18,415.93 = 7,376.73/x
  3. Step 3: Cross multiply
    13,345.42x = 18,415.93 × 7,376.73
  4. Step 4: Simplify right side
    13,345.42x = 135,849,343.31
  5. Step 5: Solve for x
    x = 135,849,343.31/13,345.42
  6. Step 6: Final answer
    x = 10,179.47

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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.