Home / 15,890.76-21,924.18-9,175.50

Finding the Fourth Proportional to 15,890.76, 21,924.18 and 9,175.50

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Solution

The fourth proportional to 15,890.76, 21,924.18 and 9,175.50 is: 12,659.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,890.76 : 21,924.18 = 9,175.50 : x
  2. Step 2: Convert to fraction form
    15,890.76/21,924.18 = 9,175.50/x
  3. Step 3: Cross multiply
    15,890.76x = 21,924.18 × 9,175.50
  4. Step 4: Simplify right side
    15,890.76x = 201,165,313.59
  5. Step 5: Solve for x
    x = 201,165,313.59/15,890.76
  6. Step 6: Final answer
    x = 12,659.26

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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.