Home / 13,688.39-20,534.60-4,326.28

Finding the Fourth Proportional to 13,688.39, 20,534.60 and 4,326.28

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Solution

The fourth proportional to 13,688.39, 20,534.60 and 4,326.28 is: 6,490.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.39 : 20,534.60 = 4,326.28 : x
  2. Step 2: Convert to fraction form
    13,688.39/20,534.60 = 4,326.28/x
  3. Step 3: Cross multiply
    13,688.39x = 20,534.60 × 4,326.28
  4. Step 4: Simplify right side
    13,688.39x = 88,838,426.00
  5. Step 5: Solve for x
    x = 88,838,426.00/13,688.39
  6. Step 6: Final answer
    x = 6,490.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.