Home / 10,742.88-14,815.26-7,159.85

Finding the Fourth Proportional to 10,742.88, 14,815.26 and 7,159.85

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Solution

The fourth proportional to 10,742.88, 14,815.26 and 7,159.85 is: 9,873.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.88 : 14,815.26 = 7,159.85 : x
  2. Step 2: Convert to fraction form
    10,742.88/14,815.26 = 7,159.85/x
  3. Step 3: Cross multiply
    10,742.88x = 14,815.26 × 7,159.85
  4. Step 4: Simplify right side
    10,742.88x = 106,075,039.31
  5. Step 5: Solve for x
    x = 106,075,039.31/10,742.88
  6. Step 6: Final answer
    x = 9,873.99

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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.