Home / 10,409.80-15,540.53-10,045.32

Finding the Fourth Proportional to 10,409.80, 15,540.53 and 10,045.32

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Solution

The fourth proportional to 10,409.80, 15,540.53 and 10,045.32 is: 14,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.80 : 15,540.53 = 10,045.32 : x
  2. Step 2: Convert to fraction form
    10,409.80/15,540.53 = 10,045.32/x
  3. Step 3: Cross multiply
    10,409.80x = 15,540.53 × 10,045.32
  4. Step 4: Simplify right side
    10,409.80x = 156,109,596.82
  5. Step 5: Solve for x
    x = 156,109,596.82/10,409.80
  6. Step 6: Final answer
    x = 14,996.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.