Home / 7,828.99-11,746.86-5,197.43

Finding the Fourth Proportional to 7,828.99, 11,746.86 and 5,197.43

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Solution

The fourth proportional to 7,828.99, 11,746.86 and 5,197.43 is: 7,798.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.99 : 11,746.86 = 5,197.43 : x
  2. Step 2: Convert to fraction form
    7,828.99/11,746.86 = 5,197.43/x
  3. Step 3: Cross multiply
    7,828.99x = 11,746.86 × 5,197.43
  4. Step 4: Simplify right side
    7,828.99x = 61,053,492.45
  5. Step 5: Solve for x
    x = 61,053,492.45/7,828.99
  6. Step 6: Final answer
    x = 7,798.39

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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.