Home / 13,860.51-19,079.31-12,089.04

Finding the Fourth Proportional to 13,860.51, 19,079.31 and 12,089.04

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Solution

The fourth proportional to 13,860.51, 19,079.31 and 12,089.04 is: 16,640.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.51 : 19,079.31 = 12,089.04 : x
  2. Step 2: Convert to fraction form
    13,860.51/19,079.31 = 12,089.04/x
  3. Step 3: Cross multiply
    13,860.51x = 19,079.31 × 12,089.04
  4. Step 4: Simplify right side
    13,860.51x = 230,650,541.76
  5. Step 5: Solve for x
    x = 230,650,541.76/13,860.51
  6. Step 6: Final answer
    x = 16,640.84

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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.