Home / 13,875.52-20,808.06-4,513.15

Finding the Fourth Proportional to 13,875.52, 20,808.06 and 4,513.15

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Solution

The fourth proportional to 13,875.52, 20,808.06 and 4,513.15 is: 6,768.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.52 : 20,808.06 = 4,513.15 : x
  2. Step 2: Convert to fraction form
    13,875.52/20,808.06 = 4,513.15/x
  3. Step 3: Cross multiply
    13,875.52x = 20,808.06 × 4,513.15
  4. Step 4: Simplify right side
    13,875.52x = 93,909,895.99
  5. Step 5: Solve for x
    x = 93,909,895.99/13,875.52
  6. Step 6: Final answer
    x = 6,768.03

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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.