Home / 14,130.65-19,500.85-8,081.88

Finding the Fourth Proportional to 14,130.65, 19,500.85 and 8,081.88

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Solution

The fourth proportional to 14,130.65, 19,500.85 and 8,081.88 is: 11,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,130.65 : 19,500.85 = 8,081.88 : x
  2. Step 2: Convert to fraction form
    14,130.65/19,500.85 = 8,081.88/x
  3. Step 3: Cross multiply
    14,130.65x = 19,500.85 × 8,081.88
  4. Step 4: Simplify right side
    14,130.65x = 157,603,466.57
  5. Step 5: Solve for x
    x = 157,603,466.57/14,130.65
  6. Step 6: Final answer
    x = 11,153.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.