Home / 13,739.46-18,955.05-8,964.99

Finding the Fourth Proportional to 13,739.46, 18,955.05 and 8,964.99

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Solution

The fourth proportional to 13,739.46, 18,955.05 and 8,964.99 is: 12,368.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.46 : 18,955.05 = 8,964.99 : x
  2. Step 2: Convert to fraction form
    13,739.46/18,955.05 = 8,964.99/x
  3. Step 3: Cross multiply
    13,739.46x = 18,955.05 × 8,964.99
  4. Step 4: Simplify right side
    13,739.46x = 169,931,833.70
  5. Step 5: Solve for x
    x = 169,931,833.70/13,739.46
  6. Step 6: Final answer
    x = 12,368.16

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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.