Home / 13,430.07-20,179.13-8,502.03

Finding the Fourth Proportional to 13,430.07, 20,179.13 and 8,502.03

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Solution

The fourth proportional to 13,430.07, 20,179.13 and 8,502.03 is: 12,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.07 : 20,179.13 = 8,502.03 : x
  2. Step 2: Convert to fraction form
    13,430.07/20,179.13 = 8,502.03/x
  3. Step 3: Cross multiply
    13,430.07x = 20,179.13 × 8,502.03
  4. Step 4: Simplify right side
    13,430.07x = 171,563,526.12
  5. Step 5: Solve for x
    x = 171,563,526.12/13,430.07
  6. Step 6: Final answer
    x = 12,774.58

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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.