Home / 13,529.45-18,670.59-7,561.11

Finding the Fourth Proportional to 13,529.45, 18,670.59 and 7,561.11

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Solution

The fourth proportional to 13,529.45, 18,670.59 and 7,561.11 is: 10,434.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.45 : 18,670.59 = 7,561.11 : x
  2. Step 2: Convert to fraction form
    13,529.45/18,670.59 = 7,561.11/x
  3. Step 3: Cross multiply
    13,529.45x = 18,670.59 × 7,561.11
  4. Step 4: Simplify right side
    13,529.45x = 141,170,476.04
  5. Step 5: Solve for x
    x = 141,170,476.04/13,529.45
  6. Step 6: Final answer
    x = 10,434.31

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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.