Home / 13,561.84-18,715.80-7,593.76

Finding the Fourth Proportional to 13,561.84, 18,715.80 and 7,593.76

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Solution

The fourth proportional to 13,561.84, 18,715.80 and 7,593.76 is: 10,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.84 : 18,715.80 = 7,593.76 : x
  2. Step 2: Convert to fraction form
    13,561.84/18,715.80 = 7,593.76/x
  3. Step 3: Cross multiply
    13,561.84x = 18,715.80 × 7,593.76
  4. Step 4: Simplify right side
    13,561.84x = 142,123,293.41
  5. Step 5: Solve for x
    x = 142,123,293.41/13,561.84
  6. Step 6: Final answer
    x = 10,479.65

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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.