Home / 12,521.55-18,779.93-3,756.45

Finding the Fourth Proportional to 12,521.55, 18,779.93 and 3,756.45

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Solution

The fourth proportional to 12,521.55, 18,779.93 and 3,756.45 is: 5,633.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.55 : 18,779.93 = 3,756.45 : x
  2. Step 2: Convert to fraction form
    12,521.55/18,779.93 = 3,756.45/x
  3. Step 3: Cross multiply
    12,521.55x = 18,779.93 × 3,756.45
  4. Step 4: Simplify right side
    12,521.55x = 70,545,849.27
  5. Step 5: Solve for x
    x = 70,545,849.27/12,521.55
  6. Step 6: Final answer
    x = 5,633.96

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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.