Home / 13,012.86-19,521.30-4,245.06

Finding the Fourth Proportional to 13,012.86, 19,521.30 and 4,245.06

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Solution

The fourth proportional to 13,012.86, 19,521.30 and 4,245.06 is: 6,368.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.86 : 19,521.30 = 4,245.06 : x
  2. Step 2: Convert to fraction form
    13,012.86/19,521.30 = 4,245.06/x
  3. Step 3: Cross multiply
    13,012.86x = 19,521.30 × 4,245.06
  4. Step 4: Simplify right side
    13,012.86x = 82,869,089.78
  5. Step 5: Solve for x
    x = 82,869,089.78/13,012.86
  6. Step 6: Final answer
    x = 6,368.25

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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.