Home / 14,087.55-19,438.53-8,424.64

Finding the Fourth Proportional to 14,087.55, 19,438.53 and 8,424.64

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Solution

The fourth proportional to 14,087.55, 19,438.53 and 8,424.64 is: 11,624.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,087.55 : 19,438.53 = 8,424.64 : x
  2. Step 2: Convert to fraction form
    14,087.55/19,438.53 = 8,424.64/x
  3. Step 3: Cross multiply
    14,087.55x = 19,438.53 × 8,424.64
  4. Step 4: Simplify right side
    14,087.55x = 163,762,520.19
  5. Step 5: Solve for x
    x = 163,762,520.19/14,087.55
  6. Step 6: Final answer
    x = 11,624.63

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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.