Home / 15,955.72-22,012.50-9,665.80

Finding the Fourth Proportional to 15,955.72, 22,012.50 and 9,665.80

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Solution

The fourth proportional to 15,955.72, 22,012.50 and 9,665.80 is: 13,334.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.72 : 22,012.50 = 9,665.80 : x
  2. Step 2: Convert to fraction form
    15,955.72/22,012.50 = 9,665.80/x
  3. Step 3: Cross multiply
    15,955.72x = 22,012.50 × 9,665.80
  4. Step 4: Simplify right side
    15,955.72x = 212,768,422.50
  5. Step 5: Solve for x
    x = 212,768,422.50/15,955.72
  6. Step 6: Final answer
    x = 13,334.93

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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.