Home / 14,915.55-20,559.96-12,222.81

Finding the Fourth Proportional to 14,915.55, 20,559.96 and 12,222.81

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Solution

The fourth proportional to 14,915.55, 20,559.96 and 12,222.81 is: 16,848.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.55 : 20,559.96 = 12,222.81 : x
  2. Step 2: Convert to fraction form
    14,915.55/20,559.96 = 12,222.81/x
  3. Step 3: Cross multiply
    14,915.55x = 20,559.96 × 12,222.81
  4. Step 4: Simplify right side
    14,915.55x = 251,300,484.69
  5. Step 5: Solve for x
    x = 251,300,484.69/14,915.55
  6. Step 6: Final answer
    x = 16,848.22

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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.