Home / 13,575.47-18,708.77-10,586.57

Finding the Fourth Proportional to 13,575.47, 18,708.77 and 10,586.57

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Solution

The fourth proportional to 13,575.47, 18,708.77 and 10,586.57 is: 14,589.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.47 : 18,708.77 = 10,586.57 : x
  2. Step 2: Convert to fraction form
    13,575.47/18,708.77 = 10,586.57/x
  3. Step 3: Cross multiply
    13,575.47x = 18,708.77 × 10,586.57
  4. Step 4: Simplify right side
    13,575.47x = 198,061,636.14
  5. Step 5: Solve for x
    x = 198,061,636.14/13,575.47
  6. Step 6: Final answer
    x = 14,589.68

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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.