Home / 12,857.32-19,285.65-5,931.82

Finding the Fourth Proportional to 12,857.32, 19,285.65 and 5,931.82

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Solution

The fourth proportional to 12,857.32, 19,285.65 and 5,931.82 is: 8,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.32 : 19,285.65 = 5,931.82 : x
  2. Step 2: Convert to fraction form
    12,857.32/19,285.65 = 5,931.82/x
  3. Step 3: Cross multiply
    12,857.32x = 19,285.65 × 5,931.82
  4. Step 4: Simplify right side
    12,857.32x = 114,399,004.38
  5. Step 5: Solve for x
    x = 114,399,004.38/12,857.32
  6. Step 6: Final answer
    x = 8,897.58

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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.