Home / 19,648.90-27,113.70-11,689.84

Finding the Fourth Proportional to 19,648.90, 27,113.70 and 11,689.84

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Solution

The fourth proportional to 19,648.90, 27,113.70 and 11,689.84 is: 16,130.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.90 : 27,113.70 = 11,689.84 : x
  2. Step 2: Convert to fraction form
    19,648.90/27,113.70 = 11,689.84/x
  3. Step 3: Cross multiply
    19,648.90x = 27,113.70 × 11,689.84
  4. Step 4: Simplify right side
    19,648.90x = 316,954,814.81
  5. Step 5: Solve for x
    x = 316,954,814.81/19,648.90
  6. Step 6: Final answer
    x = 16,130.92

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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.