Home / 12,528.96-18,770.28-10,866.84

Finding the Fourth Proportional to 12,528.96, 18,770.28 and 10,866.84

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Solution

The fourth proportional to 12,528.96, 18,770.28 and 10,866.84 is: 16,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.96 : 18,770.28 = 10,866.84 : x
  2. Step 2: Convert to fraction form
    12,528.96/18,770.28 = 10,866.84/x
  3. Step 3: Cross multiply
    12,528.96x = 18,770.28 × 10,866.84
  4. Step 4: Simplify right side
    12,528.96x = 203,973,629.52
  5. Step 5: Solve for x
    x = 203,973,629.52/12,528.96
  6. Step 6: Final answer
    x = 16,280.17

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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.