Home / 12,945.16-19,417.74-3,711.16

Finding the Fourth Proportional to 12,945.16, 19,417.74 and 3,711.16

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Solution

The fourth proportional to 12,945.16, 19,417.74 and 3,711.16 is: 5,566.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,945.16 : 19,417.74 = 3,711.16 : x
  2. Step 2: Convert to fraction form
    12,945.16/19,417.74 = 3,711.16/x
  3. Step 3: Cross multiply
    12,945.16x = 19,417.74 × 3,711.16
  4. Step 4: Simplify right side
    12,945.16x = 72,062,339.98
  5. Step 5: Solve for x
    x = 72,062,339.98/12,945.16
  6. Step 6: Final answer
    x = 5,566.74

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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.