Home / 15,230.58-21,011.84-11,867.57

Finding the Fourth Proportional to 15,230.58, 21,011.84 and 11,867.57

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Solution

The fourth proportional to 15,230.58, 21,011.84 and 11,867.57 is: 16,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230.58 : 21,011.84 = 11,867.57 : x
  2. Step 2: Convert to fraction form
    15,230.58/21,011.84 = 11,867.57/x
  3. Step 3: Cross multiply
    15,230.58x = 21,011.84 × 11,867.57
  4. Step 4: Simplify right side
    15,230.58x = 249,359,317.63
  5. Step 5: Solve for x
    x = 249,359,317.63/15,230.58
  6. Step 6: Final answer
    x = 16,372.28

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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.