Home / 12,526.90-18,790.65-4,207.19

Finding the Fourth Proportional to 12,526.90, 18,790.65 and 4,207.19

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Solution

The fourth proportional to 12,526.90, 18,790.65 and 4,207.19 is: 6,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,526.90 : 18,790.65 = 4,207.19 : x
  2. Step 2: Convert to fraction form
    12,526.90/18,790.65 = 4,207.19/x
  3. Step 3: Cross multiply
    12,526.90x = 18,790.65 × 4,207.19
  4. Step 4: Simplify right side
    12,526.90x = 79,055,740.82
  5. Step 5: Solve for x
    x = 79,055,740.82/12,526.90
  6. Step 6: Final answer
    x = 6,310.88

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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.