Home / 13,516.47-20,276.65-4,157.28

Finding the Fourth Proportional to 13,516.47, 20,276.65 and 4,157.28

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Solution

The fourth proportional to 13,516.47, 20,276.65 and 4,157.28 is: 6,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.47 : 20,276.65 = 4,157.28 : x
  2. Step 2: Convert to fraction form
    13,516.47/20,276.65 = 4,157.28/x
  3. Step 3: Cross multiply
    13,516.47x = 20,276.65 × 4,157.28
  4. Step 4: Simplify right side
    13,516.47x = 84,295,711.51
  5. Step 5: Solve for x
    x = 84,295,711.51/13,516.47
  6. Step 6: Final answer
    x = 6,236.52

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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.