Home / 19,680.16-27,156.72-11,295.04

Finding the Fourth Proportional to 19,680.16, 27,156.72 and 11,295.04

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Solution

The fourth proportional to 19,680.16, 27,156.72 and 11,295.04 is: 15,586.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.16 : 27,156.72 = 11,295.04 : x
  2. Step 2: Convert to fraction form
    19,680.16/27,156.72 = 11,295.04/x
  3. Step 3: Cross multiply
    19,680.16x = 27,156.72 × 11,295.04
  4. Step 4: Simplify right side
    19,680.16x = 306,736,238.67
  5. Step 5: Solve for x
    x = 306,736,238.67/19,680.16
  6. Step 6: Final answer
    x = 15,586.06

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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.