Home / 13,740.04-18,954.30-8,695.81

Finding the Fourth Proportional to 13,740.04, 18,954.30 and 8,695.81

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Solution

The fourth proportional to 13,740.04, 18,954.30 and 8,695.81 is: 11,995.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.04 : 18,954.30 = 8,695.81 : x
  2. Step 2: Convert to fraction form
    13,740.04/18,954.30 = 8,695.81/x
  3. Step 3: Cross multiply
    13,740.04x = 18,954.30 × 8,695.81
  4. Step 4: Simplify right side
    13,740.04x = 164,822,991.48
  5. Step 5: Solve for x
    x = 164,822,991.48/13,740.04
  6. Step 6: Final answer
    x = 11,995.82

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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.