Home / 15,751.49-21,740.21-9,041.66

Finding the Fourth Proportional to 15,751.49, 21,740.21 and 9,041.66

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Solution

The fourth proportional to 15,751.49, 21,740.21 and 9,041.66 is: 12,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.49 : 21,740.21 = 9,041.66 : x
  2. Step 2: Convert to fraction form
    15,751.49/21,740.21 = 9,041.66/x
  3. Step 3: Cross multiply
    15,751.49x = 21,740.21 × 9,041.66
  4. Step 4: Simplify right side
    15,751.49x = 196,567,433.24
  5. Step 5: Solve for x
    x = 196,567,433.24/15,751.49
  6. Step 6: Final answer
    x = 12,479.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.