Home / 15,746.94-21,730.50-8,673.30

Finding the Fourth Proportional to 15,746.94, 21,730.50 and 8,673.30

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Solution

The fourth proportional to 15,746.94, 21,730.50 and 8,673.30 is: 11,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.94 : 21,730.50 = 8,673.30 : x
  2. Step 2: Convert to fraction form
    15,746.94/21,730.50 = 8,673.30/x
  3. Step 3: Cross multiply
    15,746.94x = 21,730.50 × 8,673.30
  4. Step 4: Simplify right side
    15,746.94x = 188,475,145.65
  5. Step 5: Solve for x
    x = 188,475,145.65/15,746.94
  6. Step 6: Final answer
    x = 11,969.00

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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.