Home / 13,448.45-18,557.43-7,479.16

Finding the Fourth Proportional to 13,448.45, 18,557.43 and 7,479.16

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Solution

The fourth proportional to 13,448.45, 18,557.43 and 7,479.16 is: 10,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.45 : 18,557.43 = 7,479.16 : x
  2. Step 2: Convert to fraction form
    13,448.45/18,557.43 = 7,479.16/x
  3. Step 3: Cross multiply
    13,448.45x = 18,557.43 × 7,479.16
  4. Step 4: Simplify right side
    13,448.45x = 138,793,988.16
  5. Step 5: Solve for x
    x = 138,793,988.16/13,448.45
  6. Step 6: Final answer
    x = 10,320.44

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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.