Home / 13,529.70-18,671.58-7,561.35

Finding the Fourth Proportional to 13,529.70, 18,671.58 and 7,561.35

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Solution

The fourth proportional to 13,529.70, 18,671.58 and 7,561.35 is: 10,434.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.70 : 18,671.58 = 7,561.35 : x
  2. Step 2: Convert to fraction form
    13,529.70/18,671.58 = 7,561.35/x
  3. Step 3: Cross multiply
    13,529.70x = 18,671.58 × 7,561.35
  4. Step 4: Simplify right side
    13,529.70x = 141,182,351.43
  5. Step 5: Solve for x
    x = 141,182,351.43/13,529.70
  6. Step 6: Final answer
    x = 10,434.99

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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.