Home / 13,276.74-18,318.96-7,684.50

Finding the Fourth Proportional to 13,276.74, 18,318.96 and 7,684.50

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Solution

The fourth proportional to 13,276.74, 18,318.96 and 7,684.50 is: 10,602.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,276.74 : 18,318.96 = 7,684.50 : x
  2. Step 2: Convert to fraction form
    13,276.74/18,318.96 = 7,684.50/x
  3. Step 3: Cross multiply
    13,276.74x = 18,318.96 × 7,684.50
  4. Step 4: Simplify right side
    13,276.74x = 140,772,048.12
  5. Step 5: Solve for x
    x = 140,772,048.12/13,276.74
  6. Step 6: Final answer
    x = 10,602.91

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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.