Home / 8,455.83-11,665.14-5,472.63

Finding the Fourth Proportional to 8,455.83, 11,665.14 and 5,472.63

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Solution

The fourth proportional to 8,455.83, 11,665.14 and 5,472.63 is: 7,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.83 : 11,665.14 = 5,472.63 : x
  2. Step 2: Convert to fraction form
    8,455.83/11,665.14 = 5,472.63/x
  3. Step 3: Cross multiply
    8,455.83x = 11,665.14 × 5,472.63
  4. Step 4: Simplify right side
    8,455.83x = 63,838,995.12
  5. Step 5: Solve for x
    x = 63,838,995.12/8,455.83
  6. Step 6: Final answer
    x = 7,549.70

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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.