Home / 12,530.81-18,788.93-4,740.23

Finding the Fourth Proportional to 12,530.81, 18,788.93 and 4,740.23

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Solution

The fourth proportional to 12,530.81, 18,788.93 and 4,740.23 is: 7,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.81 : 18,788.93 = 4,740.23 : x
  2. Step 2: Convert to fraction form
    12,530.81/18,788.93 = 4,740.23/x
  3. Step 3: Cross multiply
    12,530.81x = 18,788.93 × 4,740.23
  4. Step 4: Simplify right side
    12,530.81x = 89,063,849.65
  5. Step 5: Solve for x
    x = 89,063,849.65/12,530.81
  6. Step 6: Final answer
    x = 7,107.59

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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.