Home / 13,455.68-18,575.57-10,424.06

Finding the Fourth Proportional to 13,455.68, 18,575.57 and 10,424.06

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Solution

The fourth proportional to 13,455.68, 18,575.57 and 10,424.06 is: 14,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.68 : 18,575.57 = 10,424.06 : x
  2. Step 2: Convert to fraction form
    13,455.68/18,575.57 = 10,424.06/x
  3. Step 3: Cross multiply
    13,455.68x = 18,575.57 × 10,424.06
  4. Step 4: Simplify right side
    13,455.68x = 193,632,711.22
  5. Step 5: Solve for x
    x = 193,632,711.22/13,455.68
  6. Step 6: Final answer
    x = 14,390.41

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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.