Home / 13,107.04-18,091.02-8,859.40

Finding the Fourth Proportional to 13,107.04, 18,091.02 and 8,859.40

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Solution

The fourth proportional to 13,107.04, 18,091.02 and 8,859.40 is: 12,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.04 : 18,091.02 = 8,859.40 : x
  2. Step 2: Convert to fraction form
    13,107.04/18,091.02 = 8,859.40/x
  3. Step 3: Cross multiply
    13,107.04x = 18,091.02 × 8,859.40
  4. Step 4: Simplify right side
    13,107.04x = 160,275,582.59
  5. Step 5: Solve for x
    x = 160,275,582.59/13,107.04
  6. Step 6: Final answer
    x = 12,228.21

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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.