Home / 13,875.59-20,813.27-5,983.68

Finding the Fourth Proportional to 13,875.59, 20,813.27 and 5,983.68

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Solution

The fourth proportional to 13,875.59, 20,813.27 and 5,983.68 is: 8,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.59 : 20,813.27 = 5,983.68 : x
  2. Step 2: Convert to fraction form
    13,875.59/20,813.27 = 5,983.68/x
  3. Step 3: Cross multiply
    13,875.59x = 20,813.27 × 5,983.68
  4. Step 4: Simplify right side
    13,875.59x = 124,539,984.51
  5. Step 5: Solve for x
    x = 124,539,984.51/13,875.59
  6. Step 6: Final answer
    x = 8,975.47

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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.