Home / 12,295.08-18,446.40-10,988.28

Finding the Fourth Proportional to 12,295.08, 18,446.40 and 10,988.28

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Solution

The fourth proportional to 12,295.08, 18,446.40 and 10,988.28 is: 16,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.08 : 18,446.40 = 10,988.28 : x
  2. Step 2: Convert to fraction form
    12,295.08/18,446.40 = 10,988.28/x
  3. Step 3: Cross multiply
    12,295.08x = 18,446.40 × 10,988.28
  4. Step 4: Simplify right side
    12,295.08x = 202,694,208.19
  5. Step 5: Solve for x
    x = 202,694,208.19/12,295.08
  6. Step 6: Final answer
    x = 16,485.80

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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.