Home / 13,000.30-19,500.45-4,689.70

Finding the Fourth Proportional to 13,000.30, 19,500.45 and 4,689.70

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Solution

The fourth proportional to 13,000.30, 19,500.45 and 4,689.70 is: 7,034.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.30 : 19,500.45 = 4,689.70 : x
  2. Step 2: Convert to fraction form
    13,000.30/19,500.45 = 4,689.70/x
  3. Step 3: Cross multiply
    13,000.30x = 19,500.45 × 4,689.70
  4. Step 4: Simplify right side
    13,000.30x = 91,451,260.37
  5. Step 5: Solve for x
    x = 91,451,260.37/13,000.30
  6. Step 6: Final answer
    x = 7,034.55

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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.