Home / 13,586.61-20,349.80-10,443.48

Finding the Fourth Proportional to 13,586.61, 20,349.80 and 10,443.48

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Solution

The fourth proportional to 13,586.61, 20,349.80 and 10,443.48 is: 15,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.61 : 20,349.80 = 10,443.48 : x
  2. Step 2: Convert to fraction form
    13,586.61/20,349.80 = 10,443.48/x
  3. Step 3: Cross multiply
    13,586.61x = 20,349.80 × 10,443.48
  4. Step 4: Simplify right side
    13,586.61x = 212,522,755.41
  5. Step 5: Solve for x
    x = 212,522,755.41/13,586.61
  6. Step 6: Final answer
    x = 15,642.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.