Home / 12,810.72-19,207.20-5,020.32

Finding the Fourth Proportional to 12,810.72, 19,207.20 and 5,020.32

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Solution

The fourth proportional to 12,810.72, 19,207.20 and 5,020.32 is: 7,527.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,810.72 : 19,207.20 = 5,020.32 : x
  2. Step 2: Convert to fraction form
    12,810.72/19,207.20 = 5,020.32/x
  3. Step 3: Cross multiply
    12,810.72x = 19,207.20 × 5,020.32
  4. Step 4: Simplify right side
    12,810.72x = 96,426,290.30
  5. Step 5: Solve for x
    x = 96,426,290.30/12,810.72
  6. Step 6: Final answer
    x = 7,527.00

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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.