Home / 13,107.52-18,075.84-10,118.40

Finding the Fourth Proportional to 13,107.52, 18,075.84 and 10,118.40

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Solution

The fourth proportional to 13,107.52, 18,075.84 and 10,118.40 is: 13,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.52 : 18,075.84 = 10,118.40 : x
  2. Step 2: Convert to fraction form
    13,107.52/18,075.84 = 10,118.40/x
  3. Step 3: Cross multiply
    13,107.52x = 18,075.84 × 10,118.40
  4. Step 4: Simplify right side
    13,107.52x = 182,898,579.46
  5. Step 5: Solve for x
    x = 182,898,579.46/13,107.52
  6. Step 6: Final answer
    x = 13,953.71

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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.